Which of the following were primary battles during the Korean War?

The correct answer identifies Pusan, Inchon, and Chosin Reservoir as primary battles during the Korean War, which were indeed significant conflicts that shaped the course of the war.

The Battle of Pusan Perimeter (August-September 1950) was a critical defensive battle where United Nations (UN) forces, primarily consisting of South Korean and American troops, successfully held off the North Korean army's advance. This battle was essential in establishing a foothold for UN forces in Korea.

The Battle of Inchon (September 1950) was a pivotal amphibious operation led by General Douglas MacArthur. The successful landing at Inchon allowed UN forces to recapture Seoul and change the momentum of the war in favor of the UN, facilitating a counteroffensive against North Korean forces.

The Chosin Reservoir Campaign (November-December 1950) was marked by difficult winter conditions and fierce fighting. United Nations forces faced a massive Chinese intervention, leading to a difficult but strategic withdrawal, which is remembered as a testament to the resilience of the Marines and other troops involved.

The other choices contain battles that are not related to the Korean War. Normandy pertains to World War II, specifically the D-Day landings, while Iwo Jima and Tarawa