The Mariana Campaign was a significant military operation during World War II, taking place from June to August 1944. It involved the United States forces capturing the Mariana Islands, specifically Saipan, Guam, and Tinian, from the Japanese Empire. This campaign aimed to secure a strategic base for launching air attacks on Japan and to cut off Japanese supply lines in the Pacific. The campaign was marked by intense fighting and heavy casualties on both sides. The successful capture of the Mariana Islands allowed the U.S. to establish airfields for the newly developed B-29 Superfortress bombers, which played a crucial role in the later bombing campaigns against Japan.