Kanchazu Island incident
The Kanchazu Island incident (乾岔子島事件, Kanchazutō jiken) occurred in late June 1937 on the Amur River, at the Soviet–Manchukuo border. == Background == Kanchazu (also spelled "Kanchatzu" Japanese: 乾岔子島) Island is an unoccupied 8 by 6 km (5.0 by 3.7 mi) island that is located in the center of the Amur River.