Hokushin-ron (Northern Expansion Doctrine)
북진론
Hokushin-ron was an interwar Japanese imperial military and foreign-policy doctrine that treated Manchuria and Siberia as Japan's principal sphere of interest and sought territory and resources there. Strongly supported by the Imperial Japanese Army, it grew from the experience of the Siberian Intervention and fears of the Soviet Union, but lost ground to Nanshin-ron after Japan's defeat at Khalkhin Gol in 1939.
In depth
Hokushin-ron was linked to strategic debates after the Russo-Japanese War that identified Russia as Japan's principal northern enemy. The Siberian Intervention of 1918–1922 encouraged schemes for an eastern Siberian buffer state or permanent occupation, while the 1931 invasion of Manchuria and creation of Manchukuo offered the landward base that northern expansion required. The Kwantung Army and Army officers associated with the Imperial Way Faction imagined advancing from Manchuria against the Soviet Far East and Siberia, but border conflicts and defeat at Khalkhin Gol in 1939 sharply weakened that prospect. Nanshin-ron, its rival, prioritized Southeast Asian and Pacific resources and colonies, and the contest expressed the strategic rivalry between the Imperial Army and Navy.
Sources
- Wikipedia (EN) (defines Hokushin-ron as a prewar Japanese doctrine prioritizing Manchuria and Siberia, describes its Imperial Army support, Siberian Intervention origins, border conflicts, Khalkhin Gol, and displacement by Nanshin-ron)
- pacificatrocities.org (independent educational history source contrasting Army-backed Hokushin-ron with Navy-associated Nanshin-ron and discussing the 1939 Khalkhin Gol turning point)