GWANGJU, SOUTH KOREA - JUNE 27: South Korea special warfare command troops patrol after paradrop from a CH-47 Chinook helicopter during their parachute drill at military base on June 27, 2009, in Geangju, South Korea. The drill follows high-level security talks between USA and South Korea after North Korea's nuclear test last month and long-range rocket launch. Getty Images logo Getty Images 32 months ago

GWANGJU, SOUTH KOREA - JUNE 27: South Korea special warfare command troops patrol after paradrop from a CH-47 Chinook helicopter during their parachute drill at military base on June 27, 2009, in Geangju, South Korea. The drill follows high-level security talks between USA and South Korea after North Korea's nuclear test last month and long-range rocket launch.