Stefan Heym
Helmut Flieg (1913–2001) was a German-Jewish writer, known by his pseudonym Stefan Heym. He lived in the United States (or served in its army abroad) between 1935 and 1952, before moving back to the part of his native Germany which was, from 1949–1990, German Democratic Republic (GDR, "East Germany"). He published works in English and German at home and abroad, and despite longstanding criticism of the GDR remained a committed socialist.