Question

which of the following occurred after allied forces invaded the italian mainland in september 1943? german forces retreated from italy. axis forces repelled the allies. italian forces quickly surrendered. allied forces declared victory in europe.

Explanation:

After the Allied invasion of the Italian mainland in September 1943, Italy had already surrendered unconditionally on September 8, 1943. German forces did not retreat, but instead occupied much of northern and central Italy. The Axis did not repel the Allies, and the Allied victory in Europe was declared in May 1945.

Answer:

Italian forces quickly surrendered.