The Berlin Blockade and Airlift

The War Ends, the Division Begins

When Germany surrendered unconditionally on 8 May 1945, much of Europe's major cities lay in rubble. Across Germany roughly 80 percent of the infrastructure was destroyed or in need of repair, and Berlin's pre-war population of 4.3 million had fallen to 2.8 million. The Allies had already been debating the fate of defeated Germany for more than a year. On 12 September 1944, at Lancaster House in London, the European Advisory Commission (EAC) adopted the Protocol on the Zones of Occupation in Germany and the Administration of Greater Berlin. This London Protocol divided Germany, within its 31 December 1937 borders, into three occupation zones, and Berlin into three sectors. Soviet forces would occupy the Eastern Zone; which Western power would take which zone and which Berlin sector was left blank, marked by asterisks (***). But the most consequential fact was already settled: Berlin, the whole of it, would sit 100 miles (160 kilometres) inside the Soviet zone, far from the Western sectors the city itself would contain.

The framework was amended at Yalta in February 1945, where France was made a fourth occupying power and its zone was carved from the British and American areas. The Potsdam Agreement of 2 August 1945 confirmed the architecture but embedded a decisive ambiguity. Germany was to be treated as 'a single economic unit', yet each military governor held ultimate authority in his own zone, and decisions affecting Germany as a whole required unanimity in the Allied Control Council (ACC), seated in Berlin. The structure meant that a single occupying power could block any joint decision.

Reparations were the most explosive issue from the start. The Soviet Union estimated that the German invasion had destroyed roughly a quarter of its national wealth. At Yalta, Stalin proposed a total indemnity of $20 billion, half of it for the USSR. Roosevelt agreed only to take the figure 'as a basis for discussion', and no firm sum was ever set. At Potsdam the compromise was that the USSR would extract reparations primarily from its own zone, plus 10 percent of surplus industrial equipment from the Western zones. The cost was steep: the Soviets dismantled entire factories and shipped them east, stripping roughly 30 percent of East German industrial capacity. They even tore up the second track from double-track railway lines.

The American position was shifting rapidly. During the war Treasury Secretary Henry Morgenthau had proposed reducing Germany to a pastoral state, and the 1945 occupation directive JCS 1067 instructed the military governor to 'take no steps looking toward the economic rehabilitation of Germany'. But the US military governor, General Lucius D. Clay, argued that a wholly dependent Germany would force American taxpayers to foot the bill indefinitely. In July 1947 Truman rescinded JCS 1067 and replaced it with JCS 1779, which declared that '[a]n orderly, prosperous Europe requires the economic contributions of a stable and productive Germany'. That same year the Marshall Plan was announced; the Soviet Union and the Eastern European states refused to take part.

On 30 November 1945, the Allied Control Council approved three air corridors, each 20 miles (32 kilometres) wide, connecting the Western zones to Berlin. But for surface access (rail, road, and water) no written agreement existed. There was only a verbal understanding between Marshal Georgy Zhukov, the Soviet commander in Germany, and his Western counterparts. By the spring of 1948, that ambiguity had become a question of life and death for 2.5 million West Berliners.

One Germany or four: the contradiction embedded at Potsdam

The Potsdam Agreement carried two contradictory promises inside a single document. One was the declaration that Germany be treated as a 'single economic unit'; the other was the clause letting each occupying power extract reparations from its own zone. The document told everyone to run Germany as one economy while simultaneously slicing the most valuable part of that economy, industrial plant, into four pieces to be claimed separately. The contradiction was a deliberate compromise. The Soviet Union had suffered the war's heaviest losses, and Stalin claimed a share of western-zone industrial equipment. The compromise designed by James F. Byrnes was: each power takes reparations from its own zone, but the USSR receives 15% of the equipment dismantled in the western zones in exchange for food and coal, plus a further 10% without payment. That 15% exchange clause became the fault line running toward Berlin.

The exchange flowed in only one direction from the start. The western side began dismantling Ruhr metallurgical and chemical plant for shipment to the USSR in early 1946, but the Soviets never delivered the agricultural goods promised in return. The Soviet zone had established central administrations for food, transport and finance as early as the summer of 1945, immediately after occupation, and stripped factory equipment eastward in the name of reparations while, as General Lucius D. Clay noted, agricultural deliveries simply stopped. Clay, the American military governor who had to feed and heat the expellees crowding his zone, halted the transfer of Ruhr dismantled plant to the USSR on 3 May 1946. The 'single economic unit' was a dead letter within a year, and long before any blockade a border no currency or administration crossed had already formed between Marshal Vasily Sokolovsky's zone and the western zones. The agreement told them to run Germany as one; reality had already split it into four.

The Bizone institutionalised that failure. On 2 December 1946 in New York, British Foreign Secretary Ernest Bevin and Byrnes agreed to merge their two zones economically, effective 1 January 1947. Britain pushed the merger for reasons of finance before ideology. Bankrupted by the war, Britain was spending dollars to feed its northwestern zone, and the Labour government could not sustain that burden unless America shared it. America agreed because, even before the Marshall Plan, it had concluded during the war that rebuilding the European economy required a strong and self-supporting western Germany. So the Bizone was packaged at first as a purely economic and administrative merger, yet it was the first institutional step toward splitting Germany in two. The Soviets, given no advance notice, read it as a unilateral breach of Potsdam. Stalin can hardly have missed that it led toward the dissolution of four-power rule and the founding of a West German state. The only question left was Berlin, the island sitting in the middle of the Soviet zone, and there the failure of the reparations barter and the success of zonal merger would collide a year and a half later.

The marshal walked out, and a country that paid in cigarettes suddenly had real money

On 20 March 1948, Vasily Sokolovsky, the Soviet military governor in Germany, rose in the Allied Control Council chamber in Berlin. Demanding the outcome of the London Six-Power Conference and told only that the Western delegates had not yet heard from their governments, he declared, "I see no sense in continuing this meeting," and walked out with the entire Soviet delegation. The council never met again. His argument was blunt: the Bizone, formed by the British and Americans merging their two zones, was the seed of a separatist German government in breach of the agreed arrangements, and if that was so, four-power rule itself had become meaningless. Robert Murphy, Clay's political advisor, cabled Washington that the walkout was the first step of a three-stage Soviet plan to push the Western powers out of Berlin. As he predicted, the restrictions on trains and trucks began on 1 April.

But what decided Berlin's fate more than the collapse of shared government was money. The Reichsmark, debased by wartime inflation and then by Soviet printing, had lost real value; people bartered with cigarettes, the black market being the only working economy. Marshall Plan money could not work without a currency reform. Following the Colm-Dodge-Goldsmith plan, the West had new notes printed in the United States and shipped in under extreme secrecy: in an operation code-named Bird Dog, some 20,000 cases of 90 lb each reached Frankfurt, and only six men knew what they held. The Deutsche Mark was announced on 18 June and introduced two days later. Every resident received 40 DM and businesses 60 DM per employee; cash and deposits were converted at 100 to 6.5, debts at 100 to 10, and wages, prices and rents at 1 to 1. The same day, Bizone economics director Ludwig Erhard lifted most price and production controls.

The effect came overnight. Hoarded goods appeared on shelves, the cigarette (for three years Germany's only measure of value) became again merely something to smoke, and the black market vanished. The Soviets saw the unilateral move as a Potsdam violation; since May they had already ordered their military to introduce a Soviet currency and allow only it in their sector and all Berlin if the West brought in different money. On 22 June they announced the East German mark (Ostmark) for their zone and all Berlin, and when the West put the Deutsche Mark into its sectors anyway, they cut every ground route on 24 June. A marshal's sentence spoken on his way out of a meeting room, and a case of new banknotes, opened the Cold War's first confrontations fought without a shot.

The rails went dark and only the sky stayed open

In the early hours of 24 June, Soviet troops closed every railway, road, and canal leading to West Berlin. The official pretext was "technical difficulties," and electricity to the western sectors was cut to two hours a day; no one believed the explanation. Foot traffic between zones, on the U-Bahn and S-Bahn, stayed open, so what was sealed off was not people but trains, barges, and freight trucks. The Soviet Military Administration celebrated the move as one that would force the West to yield. The only route left was the three air corridors the Allies had put in writing on 30 November 1945, each twenty miles wide and the shortest 110 miles long; because they stood on a signed agreement, the Soviets never challenged them.

The question was whether that air route could feed a city of two and a half million. The first estimate held that West Berlin needed about 4,500 tons a day, of which food alone was 2,000 tons. Yet the American military governor, Lucius D. Clay, had only C-47 Dakotas at hand, and in the first week all of the US Air Force in Europe managed an average of barely 90 tons a day into the city. Clay judged that the Soviets were not about to start a war and were banking on Western prudence, but the United States could not abandon West Berlin. Earlier that June he had cabled Washington: "There is no practicability in maintaining our position in Berlin and it must not be evaluated on that basis... We are convinced that our remaining in Berlin is essential to our prestige in Germany and in Europe." The Truman administration agreed; if Moscow fired on a humanitarian mission, the onus of aggression would fall on the aggressor.

On 25 June Clay ordered Operation Vittles. The next day 32 C-47s landed at Tempelhof carrying 80 tons of milk, flour, and medicine. At the decisive moment Clay asked whether the Air Force could deliver coal as well; the commander of US Air Forces in Europe, Curtis E. LeMay, answered, "We can deliver anything." But the airlift was improvisation, not a plan. Clay's cable of 27 June to William Draper shows the arithmetic: seventy Dakotas could be sustained, delivering 600 or 700 tons a day, barely a third of peacetime need, and even that required fifty more transports and their crews to arrive "at the earliest practicable date." The British could not promise their own aircraft would last more than a few days, and the whole effort was expected to end within three weeks. The first week averaged 90 tons; the second reached 1,000. The Soviet press mocked "the futile attempts of the Americans to save face." Judged by those first numbers, the mockery was not wrong. Stalin's whole calculation rested on them. What he got wrong was how quickly the sky route could change.

The men who tried to take the city hall, and the men who began running the sky like a factory

As late as September 1948 the outcome of the blockade was still undecided. The airlift was moving around 4,500 tons a day, but Stalin had opened a second front. On 6 September, with Soviet military police looking on passively, communist-led mobs invaded the Stadthaus, the provisional city hall on Parochialstraße in the Soviet sector, seat of the city parliament elected in 1946. They disrupted sessions and menaced non-communist councillors, and three days later effectively seized the building. The aim was to paralyse the assembly and deliver the administration of all Berlin into communist hands. Meanwhile many West Berliners, even as the airlift held, feared the Allies might still leave.

Three days later, on 9 September, urged on by the American station RIAS, hundreds of thousands gathered at the Brandenburg Gate in the British sector. Social Democrat councillor Ernst Reuter delivered the sentence that defined the crisis: "Peoples of the world, peoples of America, of England, of France, look on this city, and recognise that this city, this people, must not be abandoned, cannot be abandoned!" As the crowd surged toward the Soviet sector, someone tore down the Soviet flag from atop the gate, and Soviet MP fire killed one man. A British deputy provost pushed the Soviet MPs back with his swagger stick and averted more bloodshed. The scene, transmitted to America, hardened public opinion against abandoning West Berlin beyond reversal.

The city parliament moved to the canteen of the technical university in the British sector. On 30 November the SED convened a so-called 'extraordinary city assembly' in East Berlin's Metropol Theatre, declared the elected government deposed, and installed a communist-only government under Friedrich Ebert Jr. The answer came at the ballot box. On 5 December, with the SED fielding no candidates and denouncing the vote as a Spalterwahl, a 'divisive election,' 86.3 percent of West Berlin's electorate turned out and gave the Social Democrats 64.5 percent. One city now had two governments.

Over the same months the airlift's adversary was not politics but winter. The problem was coal more than food: West Berlin needed three times as much coal by weight as foodstuffs, and the winter of 1948-49 was among the worst on record. Electricity was rationed to about four hours a day and heating coal fell desperately short. The French finished a new airfield at Tegel in 90 days, flying in heavy equipment dismantled aboard C-82s and reassembled on the ground, demonstrating that nothing could be kept out of Berlin.

What turned the airlift into a factory was General William H. Tunner. His 'Black Friday' of 13 August was the turning point. With cloud down to the rooftops, incoming transports stacked over Tempelhof at three-minute intervals; one crashed and burned at the runway's end, and the next burst its tires swerving to avoid it while Tunner himself circled overhead and the tower lost control. He sent every stacked aircraft home and changed the rules that day: instrument flying at all times, and exactly one landing attempt per sortie in Berlin, after which an aircraft returned to base and rejoined the back of the queue. The stacking vanished and accident rates fell at once. He barred crews from leaving their aircraft in Berlin, sending jeeps round as mobile snack bars so refuelling meant immediate departure. C-47s, which took as long to unload as the ten-ton C-54s, were phased out entirely. The target became 1,440 landings a day, one per minute.

All of it produced the 'Easter Parade' of 16 April 1949. To stir unit rivalry Tunner ordered a maximum 24-hour effort simplified to a single cargo, coal. From noon of the 15th to noon of the 16th, 1,383 flights brought in 12,941 tons without a single accident. The real achievement was not that day's figure but what followed: the daily average jumped from 6,729 to 8,893 tons, proving the airlift could go on indefinitely. Nine days later, on 25 April, the Soviet agency TASS signalled for the first time that Moscow was ready to lift the blockade. What had carried Berlin through the winter was not only tonnage in the sky but the 86.3 percent who cast their ballots in December.

The blockade ended, but Germany was already being designed as two states

When the Soviet Union reopened access on 12 May 1949, it had not accepted the Western currency reform. Moscow's original demand was that the Deutsche Mark be withdrawn from West Berlin, but the airlift had made that demand ineffective. By spring, the Western Allies were bringing in thousands of tons of coal each day with enough regularity to demonstrate that the city could survive an indefinite blockade. At the same time, Western restrictions on trade with the Soviet zone put pressure on supplies of coal and steel there. The Soviet calculation therefore included not only the possible gain from forcing West Berlin to submit, but also the cost that the Western response was imposing on the eastern economy and on Soviet occupation rule. The lifting was consequently less a reconciliation than a retreat from a coercive policy that had failed to achieve its aim. The Western Allies distrusted the reversal and continued the airlift until 30 September, building stocks rather than treating the first reopened routes as a guarantee.

The larger change was the West German state-building that the blockade had failed to prevent. In the summer of 1948 the three Western powers had summoned the ministers-president of the German Länder to prepare a constitutional order. The Parliamentary Council in Bonn chose a Basic Law, not a permanent constitution. That name acknowledged that the German people had not yet exercised self-determination as a whole, while still choosing to establish a democratic federal state in the western zones. The preamble declared that the Basic Law represented the “entire German people” and kept unity as a goal. The wording also exposed what was missing. The inhabitants of the Soviet zone had taken no part in the process, and West Berlin was not a regular Land of the Federal Republic but remained under the exceptional authority of the Western occupying powers.

The argument was not simply democracy versus dictatorship. Western politicians feared that founding a state in the western zones would consolidate partition and close the path to German unity. Konrad Adenauer and most members of the Parliamentary Council answered that, under occupation, Germans still needed an institutional centre through which rights and political responsibility could be exercised. The Basic Law was adopted on 8 May, ratified by the Länder parliaments, and promulgated on 23 May. The blockade had tried to starve West Berlin into restoring Soviet bargaining power. Its actual result was to bind the Western zones into a common state and make that state both West Berlin's protector and one of the parties to Germany's division. The roads and rails reopened, but the provisional partition of Germany had acquired a state form.

The constitution spoke of one Germany, but the state was completed in the East first

The founding of the German Democratic Republic on 7 October 1949 was more than giving the Soviet occupation zone a new name. After the Federal Republic of Germany had been proclaimed in May, East German leaders established a state that claimed to continue Germany's democratic and social reconstruction, rather than admitting that partition had been made permanent. The Soviet Union had not wanted a separate German state from the outset. Stalin had for a time kept a neutral, united Germany as a possible object of negotiation, but the Western state-building process and Konrad Adenauer's election as federal chancellor sharply narrowed that option. On 16 September, a Socialist Unity Party delegation led by Wilhelm Pieck, Otto Grotewohl, and Walter Ulbricht went to Moscow to discuss the founding procedure. Only after Stalin's written approval did it return to East Berlin to settle the date and institutions. The new state therefore combined the appearance of an autonomous German decision with the reality that it could not be launched without Soviet consent.

That appearance is clear in the constitutional language. Article 1 of the Constitution of the German Democratic Republic declared, “Germany is an indivisible democratic republic,” while Article 2 stated, “The capital of the republic is Berlin.” On 7 October the German People's Council reconstituted itself as the Provisional People's Chamber and brought the constitution into force. It then followed the procedure by which Otto Grotewohl, nominated by the strongest parliamentary group, would form a government. On 11 October Wilhelm Pieck was elected president, and on 12 October a cabinet including not only the Socialist Unity Party but also representatives of the Christian Democratic Union, Liberal Democratic Party, National Democratic Party, and Democratic Farmers' Party was approved. The official East German argument was that this marked the end of occupation and the recovery of sovereignty, while Bonn's Federal Republic was a state of occupation and economic dependence created by “dividers.” The Soviet military newspaper Tägliche Rundschau put the claim in a slogan: “The German people shapes its own fate.”

Yet the constitution's democracy and the actual operation of power did not coincide. The May election to the Third German People's Congress was not a contest among parties but a yes-or-no vote on a single list of the Democratic Bloc; the official approval was about 66 percent. The Provisional People's Chamber in October was likewise not produced by a free general election. The Socialist Unity Party controlled administration, the press, and the police. It preserved the form of pluralism by bringing other parties into government, while controlling the conditions under which political choice could occur. The Soviet Military Administration's transfer of administrative functions to the East German government on 10 October, and its replacement by the Soviet Control Commission, did not mean complete independence. The commission remained, officially, to supervise compliance with the Potsdam Agreement. The constitution said that state authority emanated from the people, but the people already had limited means to replace candidates or policies. Thus 7 October was both a passive consequence of partition and the institutionalization of an East German state-building project, presented through antifascism and social reconstruction but operating inside a Soviet military and diplomatic framework. The two German states denied each other's democratic legitimacy, yet that mutual denial transformed one Germany into two competing claims to statehood.

A winner emerged, but the German question did not

The Berlin Blockade settled not German unity but the balance of power around the question of unity. NATO was founded in April 1949, the Federal Republic of Germany on 23 May, and the German Democratic Republic on 7 October. The Western zones and the Soviet zone thus acquired states of their own. West Berlin became closely tied to the constitutional order of West Germany, yet legally retained the exceptional status of an occupied city. The airlift was therefore more than a supply operation for a hungry population. The Western powers used their treaty-based air corridors to demonstrate that they would not withdraw, while the Soviet Union failed to reopen the land routes on terms that would return West Berlin to the bargaining position it wanted. Nor should the cost be softened by saying that war was avoided. One hundred and one people died, and the Western counter-blockade deepened shortages of coal and steel in the eastern occupation zone. German civilians on both sides paid for the strategic choices of the Cold War.

Yet it is equally too simple to describe the blockade as a single Soviet plan from the outset to divide Germany permanently. The traditional Western account holds that Stalin meant to force the withdrawal of the Deutsche Mark and drive the Western powers out of West Berlin. In that interpretation, the airlift carried supplies and sent a political signal of resistance, while the lifting of the blockade marked Moscow's defeat. Revisionist historians stress instead that the Western currency reform and the London Six-Power talks were already creating a West German state. They read the Soviet action as coercive pressure intended to halt that unilateral state-building. From the Soviet perspective, this could be defended as an effort to protect reparations and economic recovery in its zone and to prevent Germany's incorporation into a Western military and economic bloc. That claim does not erase Soviet coercion or political repression in the eastern zone, but it prevents the crisis from being explained only as one man's expansionist impulse.

Documents released after the end of the Cold War have not ended the dispute; they have made the question more precise. The outline for regulating access drafted after Stalin's 12 March 1948 consultations, and the CIA's ORE 29-48 of 28 April, show both sides calculating the other's next move as a military danger. They do not, however, prove that the Soviet leadership had decided to seize West Berlin by force or to risk a general war. The U.S. State Department's retrospective account records that Moscow offered to lift the blockade if the Deutschmark was withdrawn, and explains the May 1949 decision partly through the airlift's demonstrated sustainability and the burden that the counter-blockade placed on the eastern German economy. This is where historians still disagree. Was the blockade a calculated test and a failed attempt to expel the West, or a dangerous bargaining attempt responding to Western faits accomplis? The firmer, narrower conclusion is that the airlift preserved West Berlin but not a united Germany. The blockade institutionalized partition by showing that neither side could decide Germany's future alone.