Question: The bombing of Romania in World War II comprised two series of events: until August 1944, Allied operations, and, following the overthrow of Ion Victor Antonescu's dictatorship, operations by Nazi Germany, Antonescu was a Romanian soldier and authoritarian politician who, as the Prime Minister and "Conducător" during most of World War II, presided over how many successive wartime dictatorships?
Sentence (from "Ion Antonescu"): After the war, he was convicted of war crimes and executed.
Relevant evidence: No