The document summarizes several major battles between the United States and Japan in the Pacific theater of World War II from 1941 to 1945. It describes Japan's attack on Pearl Harbor in 1941 that brought the U.S. into the war. Key naval battles including Midway in 1942 and Guadalcanal that year were turning points that weakened Japan. The U.S. also fought brutal battles to take islands like Iwo Jima, Okinawa, and Peleliu to advance closer to Japan. The U.S. then firebombed Japanese cities like Tokyo and ultimately dropped atomic bombs on Hiroshima and Nagasaki in August 1945, leading to Japan's surrender.