美国空军 C-37B 运送美国参议员抵达立陶宛希奥利艾空军基地，访问在此执行北约波罗的海空中警戒任务的美军战斗机中队。（A U.S. Air Force C-37 carrying U.S. Senators John McCain, John Hoeven and John Barrasso taxis after landing at Šiauliai Air Base, Lithuania, April 16, 2014. The Senators visited the Baltic Air Policing mission as part of a visit to the greater Baltic region, which also includes meetings with government officials in Estonia, Latvia, and Moldova.）