Complex sentence: The Romanian Army ended the war fighting along side the Soviets against the Wehrmacht, in Transylvania, Hungary, Yugoslavia, Austria and Czechoslovakia, from August 1944 until the end of the war in Europe.
Split into simpler sentences: The Romanian Army ended the war fighting along side the Soviets against Germans. They fought in Transylvania, Hungary, Yugoslavia, Austria and Czechoslovakia from August 1944 until the end of the war in Europe.