Lyushkov 's treason was a major intelligence coup for Japan .
Lyushkov continued to work against Lyushkov 's country up Lyushkov 's his disappearance amidst the Soviet invasion of Manchuria in August 1945 .
Lyushkov 's treason was a major intelligence coup for Japan , and he continued to work against his country up until his disappearance amidst the Soviet invasion of Manchuria in August 1945 .