Original: He settled in East Germany and Berlin after World War II, in 1954, and worked closely with theater directors such as Benno Besson and Wolfgang Langhoff at Berliner Ensemble and Deutsches Theater.
Simplified: After World War II he settled in East Germany, after 1954 he lived in East Berlin and worked closely with theatre directors such as Benno Besson and Wolfgang Langhoff at Berliner Ensemble and Deutsches Theater.