Seoul Air Base is an air base holding the 15th Composite Wing of the Republic of Korea Air Force

Republic of Korea Air Force

The Republic of Korea Air Force is the air force of South Korea...

. It is located in Seongnam

Seongnam

Seongnam is the second largest city in South Korea's Gyeonggi province after Suwon and the 9th largest city in the country, with a population of nearly 1 million...

 city, right below Seoul

Seoul

Seoul , officially the Seoul Special City, is the capital and largest metropolis of South Korea. A megacity with a population of over 10 million, it is the largest city proper in the OECD developed world...

. It has 2 runways(19/1,20/2). Runway 19 is equipped with ILS

Instrument Landing System

An instrument landing system is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument...

. The Seoul Air Show is held annually in this airfield. The president of South Korea

South Korea

The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...

 and other heads of states use this airfield.

The US Army base K-16 is located at the northwest corner of Seoul Air Base. The 2nd Battalion (Assault), 2nd Aviation Regiment, Combat Aviation Brigade, 2nd Infantry Division is based there.