What was the name of the planned invasion of Japan towards the end of World War II?

The planned invasion of Japan towards the end of World War II was named Operation Downfall. This military operation was devised by the Allied forces, primarily the United States, with the intention of invading and occupying the Japanese home islands in order to secure complete victory. It was divided into two parts: Operation Olympic, involving an invasion of southern Kyushu, and Operation Coronet, targeting the Tokyo Plain. However, the plan was ultimately not put into action as the dropping of atomic bombs on Hiroshima and Nagasaki led to Japan's surrender, consequently ending the war.