It is part of the VII Maneuver Corps, tasked with covering approaches to Seoul from North Korea and counterattack operations.

The 1965 deployment became possible when in August of that year the Republic of Korea's National Assembly passed a bill authorizing the action.

[1] It was incorporated into I Corps after the first fall of Seoul, soon becoming part the defensive line formed in an attempt to slow the North Korean advance to Daejeon.

[3] On September 29, a message dropped from a light plane by an officer with the Military Advisory Group to the Republic of Korea, was delivered to the U.S. adviser to the ROK 3rd Division, Lt. Col. Rollins S. Emmerich.

After establishing command posts at Yangyang, eight miles (13 km) north of the parallel, on October 2, both divisions proceeded to Wonsan and captured the town on the tenth, well before the X Corps had landed.

Meanwhile, the Division's 1st Regiment approached Pungsan, a town inland approximately halfway between the coast and Korea-China border on Iwon-Cinch'ong-ni-Hyesanjin road.

[5]: 135 By June 1966 the Capital Division controlled all the area north of Qui Nhơn to the east of Route 1 and up to the base of Phù Cát Mountain.

The Fierce Tigers were considered uncanny for their ability to search territory and smoke out enemy soldiers and weapons.