<human>:  Why did the Allies lose at the Battle of Monte Cassino?
<bot>: The Allies lost because they were outnumbered. The Allies had a total of about 10,000 troops, while the Germans had about 50,000 troops. The Allies had about 6,000 aircraft, while the Germans had about 20,000 aircraft. The Allies had about 1,200 tanks, while the Germans had about 4,500 tanks.