The Panzer III was a medium tank used by the German military during World War II. It featured varying armaments, including a 3.7 cm, 5 cm, or 7.5 cm main gun. The tank had moderate armor protection and decent mobility, reaching speeds of up to 40 km/h. Initially designed for infantry support, it saw action in various roles but became outdated as the war progressed. Despite its eventual obsolescence, the Panzer III played a significant early role in German campaigns.