Soldiers from the 7th Sustainment Brigade Salute Battery fire 35-millimeter cannons, known as a salute, during the Joint Task Force Civil Support change of command ceremony here July 15, 2014. The custom of firing cannon salutes originated in the British Royal Navy and was a sign of respect and trust. During the ceremony, U.S. Army Maj. Gen. Jeff W. Mathis III relinquished command of JTF-CS to U.S. Army Maj. Gen. William F. Roy, becoming the unit’s seventh commander. JTF-CS anticipates, plans and prepares for chemical, biological, radiological and nuclear defense support to civil authorities response operations. (Official DOD photo by U.S. Navy Petty Officer 1st Class Brian Dietrick)