Soviet Union–China border

Target entity: Soviet Union–China border
Context triple: [Kyrgyzstan–China border, predecessorBorder, Soviet Union–China border]

• A. Russia–China border
  The Russia–China border is the long international boundary separating the Russian Federation and the People’s Republic of China, stretching thousands of kilometers across rivers, mountains, and remote terrain in Northeast and Central Asia.
• B. Soviet–Manchurian border
  The Soviet–Manchurian border was the frontier between the Soviet Union and Japanese-controlled Manchuria, a strategically tense boundary that saw significant military buildup and conflict in the 1930s and 1940s.
• C. Sino–Soviet border conflict
  The Sino–Soviet border conflict was a series of armed clashes in 1969 between the Soviet Union and the People’s Republic of China along their disputed frontier, marking the peak of tensions in the Sino–Soviet split.
• D. Mongolia–Manchukuo border
  The Mongolia–Manchukuo border was the frontier between Mongolia and the Japanese puppet state of Manchukuo, notorious as the site of major 1939 clashes between Soviet–Mongolian and Japanese–Manchukuoan forces.
• E. Soviet–Japanese border conflicts
  The Soviet–Japanese border conflicts were a series of undeclared military clashes between the Soviet Union (with Mongolia) and Imperial Japan (with Manchukuo) along the Manchurian–Mongolian frontier in the late 1930s, culminating in the large-scale Battle of Khalkhin Gol.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Soviet Union–China border
Target entity description: The Soviet Union–China border was the extensive international boundary that once separated the USSR from the People’s Republic of China across Central and East Asia before the Soviet Union’s dissolution.

• A. Russia–China border
  The Russia–China border is the long international boundary separating the Russian Federation and the People’s Republic of China, stretching thousands of kilometers across rivers, mountains, and remote terrain in Northeast and Central Asia.
• B. Soviet–Manchurian border
  The Soviet–Manchurian border was the frontier between the Soviet Union and Japanese-controlled Manchuria, a strategically tense boundary that saw significant military buildup and conflict in the 1930s and 1940s.
• C. Sino–Soviet border conflict
  The Sino–Soviet border conflict was a series of armed clashes in 1969 between the Soviet Union and the People’s Republic of China along their disputed frontier, marking the peak of tensions in the Sino–Soviet split.
• D. Mongolia–Manchukuo border
  The Mongolia–Manchukuo border was the frontier between Mongolia and the Japanese puppet state of Manchukuo, notorious as the site of major 1939 clashes between Soviet–Mongolian and Japanese–Manchukuoan forces.
• E. Soviet–Japanese border conflicts
  The Soviet–Japanese border conflicts were a series of undeclared military clashes between the Soviet Union (with Mongolia) and Imperial Japan (with Manchukuo) along the Manchurian–Mongolian frontier in the late 1930s, culminating in the large-scale Battle of Khalkhin Gol.
• F. None of above. chosen