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How did the French Foreign Legion contribute to the fighting at Monte Cassino in 1944?

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French Foreign Legion soldiers in uniform with white hats and rifles stand in formation during a Bastille Day parade on the Champs Elysees in Paris. — French Foreign Legion Soldiers of the French Foreign Legion in a parade celebrating Bastille Day in Paris.

During the World War II campaign in Italy, the French Foreign Legion participated in the breakthrough at Monte Cassino in 1944.1

The legion's involvement in this theater was marked by internal political tension, as the Allied invasion of North Africa in 1942 had brought together previously fractured branches of the organization. Specifically, there was ongoing feuding between pro-Gaullist units and those that had remained loyal to the collaborationist Vichy government. Despite these internal divisions, the legion served as part of the Allied forces that engaged in the grueling and harrowing struggle to capture the German-held Gustav Line, which was essential for the Allied advance toward Rome.12