U.S. Air Force Staff Sgt. Dmitri Sokgobenzon, standing, a loadmaster with the 36th Airlift Squadron, describes low-cost, low-altitude airdrop procedures to Bangladeshi airmen during Cope South 14 at Bangabandhu Air Base, Bangladesh, Nov. 11, 2013. Cope South is an annual bilateral aerial exercise designed to increase the combat readiness and interoperability of the U.S. Air Force and the Bangladesh Air Force.