sentences:  Although they had mixed in a socialist milieu in Germany, during World War II they collaborated with the ruling Japanese fascist regime.In 1953 Yamawaki designed the Haiyūza theatre for his old friend Koreya Senda, and in 1954 and 1971 Iwao and Michiko Yamawaki brought Bauhaus exhibitions to Japan.However, in the post-war years they both largely fell into obscurity.