A KC-135 Strantotanker from the 100th Air Refueling Wing refuels a B-2 Spirit from the 509th Bomb Wing in the late hours of Jan. 18, 2017, during a mission that targeted Islamic State training camps in Libya. The B-2’s low-observability provides it greater freedom of action at high altitudes, thus increasing its range and a better field of view for the aircraft's sensors. Its unrefueled range is approximately 6,000 nautical miles (9,600 kilometers). U.S. Air Force photo by Staff Sgt. Kate Thornton Air Force Senior Airman Anthony Hayes, left, handles Ttoby, a military working dog, as he bites Senior Airman Randle Williams during a demonstration at Moody Air Force Base, Georgia, Feb. 2, 2017. Hayes and Williams are military dog handlers assigned to the 23rd Security Forces Squadron. Ttoby is a Belgian malinois and specializes in personnel protection and detecting explosives, trained as a military dog at Joint Base San Antonio-Lackland, Texas. Air Force photo by Tech. Sgt. Zachary Wolf Five Navy E-2D Advanced Hawkeyes, using the most advanced airborne radar in the world, land at Marine Corps Air Station Iwakuni, Japan, Feb. 2, 2017. Marine Corps photo by Lance Cpl. Jacob A. Farbo An F-16 Fighting Falcon assigned to the Air National Guard Air Force Reserve Test Center (AATC) takes off from Davis-Monthan Air Force Base, Arizona, Jan. 19, 2017. The AATC, hosted by the 162nd Wing, Arizona Air National Guard, conducts operational tests on behalf of each Air Force major command. U.S. Air Force photo by Airman 1st Class Nathan H. Barbour Marines fire an M777 155 mm howitzer as part of Fire Exercise 1-17 on Camp Lejeune, North Carolina, Jan. 26, 2017. The battalion-level exercise was designed to allow multiple batteries to train together to improve internal operating procedures. Marine Corps photo by Lance Cpl. Alexis C. Schneider Soldiers climb an ice-covered cliff at Smugglers' Notch in Jeffersonville, Vermont, Jan. 28, 2017. The soldiers were assigned to the Army National Guard. Air National Guard photo by Tech. Sgt. Sarah Mattison A Marine performs during the Navy-Marine Corps Ball in Washington, D.C., Feb. 4, 2017. Funds provided by the Navy-Marine Corps Ball help millions of sailors, Marines, and their families with financial assistance for emergency aid, education, and other assistance at home and abroad. DOD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro A P-3C Orion assigned to Patrol Squadron 46 sits on Naval Air Station Whidbey Island in Oak Harbor, Washington, Jan. 30, 2017. The squadron was conducting training exercises to maintain proficiency for its upcoming deployment. Navy photo by Mass Communication Specialist Petty Officer 3rd Class Alex J. Cole The U.S. Air Force’s 45th Space Wing supported United Launch Alliance’s successful launch of the third Space Based Infrared Systems Geosynchronous Earth Orbit spacecraft aboard an Atlas V rocket from Launch Complex 41 on Cape Canaveral Air Force Station Jan. 20. The launch was the first major launch operation of 2017 on the Eastern Range and kicked off what was predicted to be a busy year on the Eastern Range. Courtesy photo by United Launch Alliance Soldiers participate in a Validation Exercise at the 7th Army Training Command’s Grafenwoehr Training Area, Germany, Jan. 31, 2017. The soldiers are assigned to 2nd Squadron, 2nd Cavalry Regiment. Army photo by Gertrud Zach