On June 15, 1944, during the Pacific Campaign of World War II, American forces began their successful invasion of Saipan.
The strategically significant Japanese island was a vital step for U.S. forces to defeat Japan, and the Japanese army knew it. They were dug in and waiting for the Americans when U.S. Marines stormed the beaches.
After facing fierce Japanese resistance, American troops established a beachhead and began pushing inland. The grueling battle lasted until July 9, when troops raised the American flag over the island.