U.S. Army paratroopers with the 1st Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade Combat Team sleep during a flight over Germany aboard an Air Force C-130J Super Hercules aircraft assigned to the 37th Airlift Squadron before being air dropped into Lithuania Sept. 5, 2014, during exercise Steadfast Javelin II. Steadfast Javelin II is a NATO-led exercise designed to prepare U.S., NATO and international partner forces for unified land operations.