Short answers, pulled from the story.
Democratic Federal Yugoslavia officially appeared on the 17th of February 1944. The provisional state emerged from the Second Session of the Anti-Fascist Council for the National Liberation of Yugoslavia held in Jajce on the 29th of November 1943.
Josip Broz Tito served as Marshal of Yugoslavia and president of the government starting on the 30th of November 1943. Ivan Šubašić acted as Minister of Foreign Affairs while Milan Grol served as Deputy Prime Minister within the coalition structure.
Democratic Federal Yugoslavia organized its territory into six federal states and two autonomous units by 1945. These included the Federated State of Serbia, the Federated State of Croatia, Bosnia and Herzegovina, Slovenia, Montenegro, and Democratic Federal Macedonia alongside Vojvodina and Kosovo and Metohija.
Allied powers recognized the provisional state at the Tehran Conference during World War II. Pressure from the United Kingdom forced King Peter II's government-in-exile to acknowledge the AVNOJ government through the Treaty of Vis signed on the 16th of June 1944.
The Federal People's Republic of Yugoslavia was proclaimed on the 29th of November 1945 after the deposition of King Peter II. This transformation solidified Communist Party control over all government functions and ended the brief democratic period.