A U.S. helicopter fires during the Eager Lion military exercise, at the Quweira city, 290km south of Amman, Jordan, June, 19, 2013. The 12-day exercise involves combined air, land and sea maneuvers across Jordan. Along with Jordan and the U.S., the exercise brings together some 8,000 personnel from 19 Arab and European nations to train on border security, irregular warfare, anti-terrorism and counterinsurgency. (Xinhua/Mohammad Abu Ghosh)