What name is commonly used in Western accounts for the Soviet invasion of Manchuria in August 1945?

Operation August Storm is a common Western name for the Soviet invasion of Manchuria in August 1945.

The campaign officially began on August 9, 1945, when Soviet forces attacked Japanese-held Manchuria and the Japanese puppet state of Manchukuo. Soviet forces also struck Japanese positions in Inner Mongolia and later advanced into northern Korea, southern Sakhalin, and the Kuril Islands.

The operation followed the Soviet Union's declaration of war on Japan late on August 8. It began just hours before the atomic bombing of Nagasaki. Japan's leaders had hoped that the Soviet Union might mediate with the Western Allies, so the Soviet attack destroyed an important diplomatic assumption as well as opening a major military front.

The invasion rapidly overwhelmed the Kwantung Army. Historians continue to debate the relative weight of the Soviet offensive and the atomic bombings in Japan's decision to surrender, but both events decisively changed the strategic situation. The campaign ended in the broader sense with Japan's formal surrender on September 2, 1945.