Lt. Col. Alan Brown stands in his garage, filled with boxes that will be sent to the family's new home in New York. In the background is Lucy, the family's Schnauzer.
Zachariah Hughes/Alaska Public Media
Micah Johnson, who authorities have identified as the shooter who killed five law enforcement officers in Dallas on July 7 during a protest over recent fatal police shootings of black men.
Defense Secretary Ash Carter announces new rules allowing transgender individuals to serve openly in the U.S. military, during a news conference at the Pentagon on Thursday.
U.S. soldiers carry a 155 mm artillery round for a live-fire training exercise during the Anakonda war games near Olezno, Poland, on June 14.
Sgt. Ashley Marble/55th Combat Camera via DVIDS
Sgt. Jessie Bacon uses the Tactical Communications and Protective System to relay information to his squad in Fort Bliss, Texas. About 20,000 of the devices have been deployed so far.
Sgt. Betty Boomer/U.S. Army
Soldiers, officers and civilian employees attend a ceremony for the U.S. Army's annual observance of Sexual Assault Awareness and Prevention Month in March 2015 in Arlington, Virginia. According to the Pentagon, the initiative is "meant to reinforce a climate of dignity and respect founded on good order and discipline."
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U.S. Navy air wing captains pause on the flight deck of the aircraft carrier USS Theodore Roosevelt last September. Every day, the steam-powered catapult aboard this massive ship flings American fighter jets into the sky, on missions to target the extremist Islamic State group in Iraq and Syria.
Navigation aboard the guided-missile destroyer USS Stout is done by computer, as is the case on many other ships. The U.S. Navy now wants more of its officers proficient in celestial navigation.
Amanda Gray/U.S. Navy