Keywords: 110422-N-ZI300-015 (5662103748).jpg The Brazilian navy frigate Bosisio F 48 fires at an unmanned aerial vehicle during a drone exercise with ships from the United States and Mexico during the Atlantic phase of Unitas 52 April 22 2011 in the Atlantic Ocean Unitas Latin for unity is an annual USSOUTHCOM-sponsored multinational naval exercise designed to enhance security cooperation and improve coalition operations between South American and U S maritime forces Unitas LANT 52 took place as part of Southern Seas 2011 U S Navy photo by Mass Communication Specialist 1st Class Steve Smith/Released https //www flickr com/photos/39955793 N07/5662103748/ 110422-N-ZI300-015 2011-04-22 00 00 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/5662103748 2016-09-03 14 32 09 United States Government Work United States Department of Defense |