former country (1932-45), a Japanese puppet state consisting mainly of Manchuria
See Manchukuo in American Heritage Dictionary 4
(mănˈcho͞oˈkwōˈ) also Man·chu·guo(-gwōˈ)
A former state of eastern Asia in Manchuria and eastern Nei Monggol (Inner Mongolia). It was established as a puppet state (1932) after the Japanese invaded Manchuria in 1931 and was returned to Chinese sovereignty in 1945.