U.S. Marine Corps Lt. Col. Robert J. Hillery, commanding officer of Task Force Koa Moana 23, gives remarks during the 81st Anniversary of the Battle of Guadalcanal Ceremony at the Guadalcanal American Memorial in Honiara, Solomon Islands, August 7, 2023. The Battle of Guadalcanal, also known as Operation Watchtower, was a seven-month campaign that marked the first Allied land offensive in the Pacific theater in World War II. (U.S. Marine Corps photo by Staff Sgt. Courtney G. White) - U.S. Marine Corps Lt. Col. Robert J. Hillery, commanding officer of Task Force Koa Moana 23, gives remarks during the 81st Anniversary of the Battle of Guadalcanal Ceremony at the Guadalcanal American Memorial in Honiara, Solomon Islands, August 7, 2023. The Battle of Guadalcanal, also known as Operation Watchtower, was a seven-month campaign that marked the first Allied land offensive in the Pacific theater in World War II. (U.S. Marine Corps photo by Staff Sgt. Courtney G. White)