Maj. Gen. John Crackett of the British army, assistant chief of the defense staff for reserves and cadets, and Paul D. Patrick, deputy assistant secretary of defense for reserve readiness, training and mobilization, sign a Military Reserve Exchange Program memorandum between the United Kingdom and the United States during a ceremony at the British ambassador's residence in Washington, July 27, 2015. DoD photo by Steve Turner Maj. Gen. John Crackett of the British army, assistant chief of the defense staff for reserves and cadets, and Paul D. Patrick, deputy assistant secretary of defense for reserve readiness, training and mobilization, sign a Military Reserve Exchange Program memorandum between the United Kingdom and the United States during a ceremony at the British ambassador's residence in Washington, July 27, 2015. DoD photo by Steve Turner SHARE: Download: Full Size (1.559592 MB) Credit: VIRIN: 859136-I-AVC85-627.jpg Photo Gallery