After the war, he became the first president of the People's Republic of Croatia's Parliament (President of the Presidium of the People's Assembly), and thus the first head-of-state of the modern Croatian state in the Federal People's Republic of Yugoslavia. He went on to write a war diary With Partisans (S partizanima) (1943–1945). Nazor's opus after WWII mostly consisted of works strongly supportive of Tito's communist regime.