The Battle of Okinawa was the largest fight in the Pacific Campaign, Tim Taylor of Lost 52 Project told The Times.
The fight was the last major battle in World War II and among the most deadly. The US suffered more than 49,000 casualties, including 12,500 deaths, and the Japanese lost approximately 110,00 soldiers in the bloody fight, according to History.com.
On April 1, 1945, tens of thousands of Army and Marine Corps forces attacked the Japanese island of Okinawa in a last-ditch effort to move toward the mainland.
Taking control of Okinawa's airbases was a key step to invading Japan, and while the Allies eventually proved victorious, it came at a heavy cost.