Battle for the so-called Busan sack Battle of the Pusan Perimeter) was fought in South Korea, in the south-eastern part of the Korean during the Korean War 1950-1953. The battle lasted from early August to mid-September 1950. The parties to this battle were the armed forces of North Korea, which involved approximately 70,000 people directly in the fighting, as well as South Korean troops and UN troops (mainly American) with a maximum of about 92,000 soldiers directly involved in combat operations. The battle took place in the wake of the DPRK's sudden attack on its southern neighbor on June 25, 1950, as a result of which the lion's share of South Korea was occupied by the communists. The only exception was the Pusan sack covering about 5-6% of the territory of South Korea. The forces of South Korea and the United Nations adopted a definitely defensive position, but they were able to carry out local counterattacks, and what is more - thanks to the maintenance of maritime communication - their numerical potential increased in the course of the battle. The battle ended in a complete defeat of the North Korean army, which was closely related to the American troops landing at Incheon in 1950. It is assumed that the total casualties (killed and wounded) of the anti-communist troops amounted to about 60,000 people, and to the North Koreans - about 64,000 people.
The Korean War (1950-1953) was fought between the troops of South Korea, supported - on behalf of the United Nations - by American, Australian and British troops, and the troops of the DPRK, i.e. North Korea, supported more or less officially by the USSR and the PRC. Infantry, of course, was the largest type of US armed force fighting in Korea. The US Army and USMC sent several infantry, infantry and marines divisions to Korea, including: 2nd Infantry Division, 7th Infantry Division and 1st Marine Division. The main strike force of the infantry division were three regiments of infantry, supported by divisional artillery and various types of support units (e.g. sappers, communication and logistics). On average, in 1950-1951, the division had between 12,500-13,650 officers and soldiers. Over time, the division structure turned out to be ineffective and the infantry units were reorganized into brigade formations, relatively well saturated with artillery, communications and sapper units. It is worth noting that the basic shooting weapon of the American infantryman was still the M1 Garand rifle and its modernized version of the M1 C / D Garand. The WWII M1918A2 BAR rifle was also used as a manual machine gun, while the M2 Browning was the heavy machine gun. It is worth noting that the American infantry had quite good, especially at the end of the conflict, hand-held anti-tank weapons in the form of Bazooka and Super-Bazooka armor.