Why Did Anzio Fail?

One of the reasons for the lack of enthusiasm for the operation, and why Lucas's orders gave him so much wiggle room, was the number of soldiers committed to the operation. Most of the military staff involved believed that not enough troops had been supplied to ensure the desired breakout.

What went wrong at Anzio?

Stalemate. After six weeks of intense fighting, the Anzio campaign had reached a bloody stalemate. The Germans had contained the Allied invasion force, but lacked the strength to push it back into the sea.

Who lost the battle of Anzio?

Allied forces attacked out of the Anzio, Italy beachhead, advancing toward Cisterna and Campoleone, but none of the two forces would be able to capture the objectives; during the process, an entire US Army Ranger battalion was destroyed. Germans defeated American troops in the Battle of Cisterna near Anzio, Italy.