The Inglorious Bastards (1978)

"On the way to the military court, five US military prisoners rioted because they could not bear the abuse by the military police and fled to the neutral country of Switzerland. Unexpectedly, they encountered "German troops" at the border and then fell into the siege of French guerrillas. It turned out that the "Germans" they killed were American soldiers with heavy responsibilities on their shoulders. Lieutenant Yeager and others..."