More than 950 cadets in the U.S. Military AcademyÕs Class of 2016 receive their Bachelor of Science degrees at Michie Stadium in West Point, N.Y., May 21, 2016. Vice President Joe Biden gave the commencement address. Army photo by Staff Sgt. Vito T. Bryant) A U.S. Navy Explosive Ordnance Disposal (EOD) technician assigned to the Explosive Ordnance Disposal Mobile Unit (EODMU) 5 participates in a Very Shallow Water (VSW) scenario during Exercise Tricrab on Naval Base Guam, May 17, 2016. Tricrab was a combined exercise involving military forces from five different countries that focuses on strengthening relationships within the Asia-Pacific region through training and information exchanges, to enhance EOD and diving related interoperability. (U.S. Navy Combat Camera photo by Mass Communication Specialist 3rd Class Alfred A. Coffield)U.S. Marines move a simulated casualty onto a landing zone outside of Robertson Barracks, Northern Territory, Australia, May 20, 2016. Marines with Marine Rotational Force - Darwin simulated causality evacuations with a UH-1Y Venom helicopter. Seabee divers pull Navy Petty Officer 2nd Class Justin Lieder from the water during a diver drill at a ship maintenance facility in Pearl Harbor, Hawaii, May18, 2016. The divers are assigned to Underwater Construction Team 2, Construction Dive Detachment Alpha.Navy photo by Petty Officer 1st Class Charles E. White U.S. Bradley infantry fighting vehicles and M1A2 Abrams tanks take part in joint military exercises at the Vaziani military base outside Tbilisi, Georgia, Wednesday, May 18, 2016. About 1,300 U.S., British and Georgian troops conducted joint exercises aimed at training the former Soviet republic's military for participation in the NATO Response Force. (AP Photo/Shakh Aivazov)Airmen participate in a pushup challenge during the Battle of the Badges competition at Ramstein Air Base, Germany, May 19, 2016. The competition was an event during National Police Week, which recognizes law enforcement officers who lost their lives in the line of duty. Air Force photo by Senior Airman Damon Kasberg CAMP GONZALVES, OKINAWA, Japan - U.S. Marine Lance Cpl. Justin D. Enger sets up a security perimeter while the rest of his platoon rappels down the mountain at the Jungle Warefare Training Center, May 19, 2016 at Camp Gonsalves, Okinawa, Japan. Enger is a combat engineer with 9th Engineer Support Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force. Enger and his platoon attended the 5-day Course at JWTC. The course gives Marines the skills to shoot, move and communicate within a jungle environment. Soldiers detonate the charge to a mine clearing line to remove an obstacle during their gunnery table training at Grafenwoehr Training Area, Germany, May 19, 2016. Army photo by Maj. Randy Ready Rex, a military working dog, takes down Air Force Staff Sgt. Brandon Hardy during a demonstration for elementary school students at Eglin Air Force Base, Fla., May 17, 2016. Hardy and Rex are assigned to the 96th Security Forces Squadron. Air Force photo by Samuel King Jr. ANNAPOLIS, MD - MAY 23: A midshipmen takes a selfie as US Naval Academy freshmen make a human wall to climb the lard covered Herndon Monument on May 23, 2016 in Annapolis, Maryland. Each year the freshman class, known as 'Plebes,' climb the monument at the Naval Academy to retrieve the Plebian Sailor's hat and replace it with an officer's hat. The tradition is one step in marking the end of wearing freshman headgear and moving up to the headgear of a U.S. Naval officer. (Photo by Mark Wilson/Getty Images)Navy Petty Officer 1st Class Ivan Mitchell, right, gets his face painted to participate in a traditional Pacific Islander dance as part of a celebration to mark Asian American and Pacific Islander Heritage Month aboard hospital ship USNS Mercy in the Pacific Ocean, May 17, 2016. Navy photo by Petty Officer 2nd Class Hank Gettys Army Command Sgt. Maj. John W. Troxell, left, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, pays respects at the Tomb of the Unknown Soldier to honor National Armed Forces Day in Arlington National Cemetery, Arlington, Va., May 21, 2016. DoD photo by Marvin D. Lynchard
