In 1944, Voytek was sent with his unit to Monte Casino in Italy, during one of bloodiest series of battles of World War II, where he helped carry crates of ammunition. In time, he was enlisted as a private soldier in the supply company, with his own paybook, rank and serial number, and eventually rose to the rank of corporal in the Polish Army. Soon, Voytek had grown to weigh more than 880 pounds (400 kg) and stood more than 6 feet (1.8 meters) tall. When the Polish troops were moved around as the war progressed, Voytek went too: to battle zones in Iraq, Palestine, Egypt and then Italy. The bear grew up drinking condensed milk from a vodka bottle and drinking beer. Voytek was a Syrian brown bear cub adopted by troops from a Polish supply company who purchased him while they were stationed in Iran.