Army RC-7Bs equipped with moving target indicators (MTI), synthetic aperture radar (SAR), and infrared and video sensors (IR/EO) patrol the demilitarized zone in Korea. Tasked to monitor military and civilian movement along possible North Korean invasion routes, the RC-7Bs provide both theater and tactical commanders with a vital intelligence source. When combined with intelligence data from other national and theater assets, including GR/CS, the RC-7B provides an indispensable contribution to the overall picture of the battle space.
Further reading on the RC-7 can be found here
Photo from Member BFIBRAVO