is a Japanese term referring to the coerced ideological conversions of Japanese socialists and communists who, between 1925 and 1945, were induced to renounce leftist ideologies and enthusiastically embrace the Emperor-centric, capitalist, and imperialist ideology favored by the state. Tenkō was typically performed under duress, most often in police custody, and was a condition for release (although surveillance and harassment would often continue thereafter). But it was also a broader phenomenon, a kind of cultural reorientation in the face of national crisis, that did not always involve dire