NATO International Military Staff Meeting

BRUSSELS, BELGIUM - MAY 20: Chief of Defence of United States General Martin E. Dempsey (R) and Chief of the Defence Staff of UK General Sir Nicholas Houghton (L) speak during NATO International Military Staff Meeting at NATO Headquarters in Brussels, Belgium, on May 20, 2015. The IMS work enables the Military Representatives of the Alliances 28 member countries to deal with issues rapidly and effectively, ensuring that the MC provides the North Atlantic Council (NAC) with consensus-based advice on all military aspects of policy, operations, and transformation within the Alliance. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)