Complex sentence: These allied civilians included British, American, and Australian people who were forced to stay in the camp for nearly two and a half years until American forces liberated them on August 12,1945 Previte, Mary.
Split into simpler sentences: These allied civilians included British, American, and Australian people. These people situated in this camp were there for nearly two and a half years until the Americans liberated on August 12,1945 Previte, Mary.