Royal Canadian Air Force service members control the Hawaiian airspace from Hawaii Air National Guard facilities during RIMPAC exercises, July 21, 2016. RIMPAC is the world’s largest international maritime exercise. The biennial event took place in the waters and skies around the Hawaiian Islands as well as Southern California. This year’s iteration involved twenty-six nations, five submarines, 45 ships, and over 200 aircraft. (Air National Guard photo by Airman 1st Class Robert Cabuco/released)