The Battle of Hollandia was an engagement between Allies of World War II and Japanese forces during World War II. The majority of the Allied force was provided by the United States, with the bulk of two United States Army infantry divisions being committed on the ground. Air and naval support consisted largely of U.S. assets, although Australia also provided air support during preliminary operations and a naval bombardment force.

The 24th Infantry Division was an infantry division of the United States Army that was inactivated in October 1996. Formed during World War II from the disbanding Hawaiian Division, the division saw action throughout the Pacific theater, first fighting in New Guinea before landing on the Philippine islands of Leyte and Luzon, driving Japanese forces from them. Following the end of the war, the division participated in occupation duties in Japan, and was the first division to respond at the outbreak of the Korean War. For the first 18 months of the war, the division was heavily engaged on the front lines with North Korean and Chinese forces, suffering over 10,000 casualties. It was withdrawn from the front lines to the reserve force for the remainder of the war after the second battle for Wonju, but returned to Korea for patrol duty at the end of major combat operations.