X Corps was a military formation of the United States Army, primarily active during the Korean War. It was established in 1950 and played a significant role in various operations, including the Inchon Landing, which was a pivotal moment in the conflict. The corps was known for its rapid advances and strategic maneuvers against North Korean forces. The X Corps was composed of several divisions, including the 1st Marine Division and the 7th Infantry Division. It operated under the command of General Douglas MacArthur during its early campaigns. The corps contributed to the overall efforts to repel North Korean aggression and stabilize the region.