Whatever you want to do, you can do in service to your country.

Defense Secretary Ash Carter speaks with students and ROTC cadets at the University of Texas at Austin, March 31, 2016. DoD photo by Army Sgt. 1st Class Clydell Kinchen

Defense Secretary Ash Carter addresses cadets during his visit to the U.S. Military Academy in West Point, N.Y., March 23, 2016. DoD photo by Petty Officer 1st Class Tim D. Godbee

Defense Secretary Ash Carter, left, meets with service members currently participating in an exchange program with Amazon in Seattle, March 3, 2016. DoD photo by Navy Petty Officer 1st Class Tim D. Godbee

Defense Secretary Ash Carter discusses reforms to his Force of the Future program to improve the quality of life for military personnel during a briefing at the Pentagon, Jan 28, 2016. DoD photo by Air Force Senior Master Sgt. Adrian Cadiz

Defense Secretary Ash Carter answered questions from students after he spoke about the first phase of personnel reforms in his Force of the Future initiative at The George Washington University in Washington, D.C., Nov. 18, 2015. DoD photo by Army Sgt. 1st Class Clydell Kinchen

Defense Secretary Ash Carter answers a question from the audience during a discussion at Harvard University’s John F. Kennedy Jr. Forum in Cambridge, Mass., Dec. 1, 2015. Graham Allison, director of the Belfer Center for Science and International Affairs and Douglas Dillon Professor of Government, Harvard Kennedy School, moderated the discussion. DoD photo by U.S. Army Sgt. 1st Class Clydell Kinchen

U.S. Navy Petty Officer 3rd Class Richard Burby, assigned to Mobile Diving and Salvage Unit 2, Company 2-1, places a KM 37 dive helmet onto Colombian navy diver Jimenez Espinel Robinson in Cartagena, Colombia, March 1, 2012. Company 2-1 is supporting Navy Dive-Southern Partnership Station 2012, a multinational partnership designed to increase interoperability and partner-nation capacity through diving operations. DoD photo by Navy Petty Officer 3rd Class Brandon Keck

Firefighting troops in heat-resistant suits attack a fire during 01/Exercise Global Medic 2013 held at Fort McCoy, Wis, July 27, 2013. Such Warrior Exercise-affiliated drills provide opportunities for service members to practice military maneuvers and tactics. Held in conjunction with WAREX, Global Medic is an annual joint field training exercise designed to replicate all aspects of theater combat medical support. U.S. Air Force photo by Staff Sgt. Jared Becker

U.S. Air Force Capts. Rebecca Slogic, center, and Chauncey Tarrant examine a child during medical readiness training as part of Beyond the Horizon 2013 in Cerro Plata, Panama, April 15, 2013. Slogic and Tarrant are pediatricians assigned to the San Antonio Military Medical Center in Texas. U.S. Army photo by Kaye Richey

U.S. Air Force Airman 1st Class Ross Honomichl checks a generator for faulty wires at the power production warehouse at Altus Air Force Base, Okla., April 12, 2013. Honomichi is a power production journeyman assigned to the 97th Civil Engineer Squadron. U.S. Air Force photo by Airman 1st Class Franklin R. Ramos

U.S. Navy Seaman Tyler Dufford tightens a bolt on a water break aboard the forward-deployed aircraft carrier USS George Washington in the East China Sea, Oct. 18, 2013. The USS Washington and Carrier Air Wing 5 provide a combat-ready force to protect and defend the maritime interests of the United States and its allies and partners in the Indo-Asia-Pacific region. U.S. Navy photo by Seaman Liam Kennedy

U.S. Air Force Lt. Col. Gerald Fortuna performs a simulated surgery while aboard a C-17 Globemaster III aircraft during an exercise at the Joint Readiness Training Center on Fort Polk, La., Jan. 17, 2014. U.S. Air Force photo by Tech. Sgt. Matthew Smith

U.S. Army Sgt. Shetara Hailey uses night vision goggles to navigate her Humvee during training at Schofield Barracks, Hawaii, July 28, 2014. Hailey is a human resources noncommissioned officer assigned to Headquarters Company, 8th Special Troops Battalion. U.S. Army photo by Spc. David Innes

U.S. and Colombian paratroopers make a free-fall jump as part of Fuerzas Comando 2014 at the Colombian National Training Center on Fort Tolemaida, Colombia, July 30, 2014. The jump symbolizes the strong partnership between both nations. U.S. Army photo by Maj. Edward Lauer

Marine Corps Lance Cpl. Timothy Knaggs, center, walks ahead of a legged support system at Marine Corps Training Area Bellows on Oahu, Hawaii, June 19, 2014. The legged system is designed to carry supplies, including water, food and ammunition, through rough terrain. U.S. Marine Corps photo by Cpl. Matthew Callahan

Army, Coast Guard, Navy, and Air Force students in the pharmacy technician program at the Medical Education and Training Campus on Fort Sam Houston, Texas, conduct training in the outpatient laboratory. U.S. Navy photo by Dewite Wehrman

Navy divers embarked on Military Sealift Command fleet ocean tug USNS Sioux in April to remove 68,200 gallons of oil from ex-USS Chehalis, a World War II tanker that was scuttled off Pago Pago, American Samoa, in 1949, after catching on fire. U.S. Navy photo

Army Sgt. Martial Tchimou serves as the noncommissioned officer in charge of financial management at the Soldiers at the Mission and Installation Contracting Command’s contracting office at Fort Bliss, Texas. U.S. Army photo

Four new judge advocates were sworn in to join the Navy-Marine Corps Court of Criminal Appeals, Dec. 12, 2013. Chief Judge Navy Capt. Moira Modzelewski read the oath to Navy Capt. Salvador A. Dominguez, Navy Capt. David Jacques Smith, Navy Cmdr. Timothy J. Stinson, and Navy Cmdr. Thomas Belsky. The court of criminal appeals conducts mandatory review, unless waived by the appellant, of all courts-martial of members of the naval service referred to the court pursuant to Articles 62, 66, 69 and 73, Uniform Code of Military Justice and, when necessary in furtherance of its jurisdiction, reviews all petitions for extraordinary relief properly filed before it. U.S. Navy photo

Gunnery Sgt. Jonathan Bley, a musician placement director for 1st Marine Corps District and North Tonawanda, New York, native, speaks to junior high and high school students about musical opportunities in the Marine Corps, before a performance at Medina High School, Medina, New York, Jan. 31, 2015. Some of Bley’s other duties include interviewing musicians to recruit for the Marine Corps, playing bass for Marine Corps sponsored events and generally supporting recruiting efforts for the northeastern United States. U.S. Marine Corps photo by Sgt. Christopher O’Quin

NASA astronaut Army Col. Doug Wheelock, Expedition 24 flight engineer, uses a ham radio system inside the Zvezda Service Module of the International Space Station. Wheelock became the new commander of the International Space Station during an in-space ceremony, Sept. 22, 2010. Wheelock was the first active-duty Army astronaut to command the space station. NASA photo

U.S. Navy Lt. Jose Garcia inactivates the Ebola virus in each specimen, rendering the virus safe for further analysis at a Naval Medical Research Center mobile laboratory on Bushrod Island, Liberia, Oct. 6, 2014. U.S. Army Africa photo by Navy Chief Petty Officer Jerrold Diederich

U.S. Air Force Staff Sgt. Adrienne Antonios, a 4th Medical Operations Squadron medical lab technician, uses a microscope to check a fluid sample for blood at Seymour Johnson Air Force Base, N.C., Jan. 5, 2010. Medical laboratory technicians process and perform analytical procedures on blood, urine and other body fluids daily. DoD photo by U.S. Air Force Senior Airman Ciara Wymbs

Sandia National Laboratory researcher Mark Tucker examines two petri dishes in 1999. On the left is one with a simulant of anthrax growing in it and on the right is one treated with the decontaminating formulation developed at Sandia. Photo by Randy Montoya, courtesy of Sandia National Laboratory

Navy Chief Culinary Specialist Derrick Davenport, who is on a team made up of enlisted aides from the Chairman of the Joint Chiefs of Staff, plates one of his dishes for the Military Chef of the Year Competition. U.S. Army photo by Amy Perry

Airman 1st Class Michelle Doolittle, U.S. Air Force Band of the Golden West vocalist, sings "God Bless America" Sunday at AT&T Park in San Francisco during the seventh-inning stretch of Game Five of the World Series. U.S. Air Force photo

NASA astronaut Army Col. Doug Wheelock, Expedition 24 flight engineer uses a ham radio system in the Zvezda Service Module of the International Space Station. Wheelock will become the new commander of the International Space Station, Sept. 22, 2010, during an in-space ceremony. Wheelock will be the first active-duty Army astronaut to command the space station. NASA photo

A U.S. Air Force F-16 Fighting Falcon flies below a KC-135 Stratotanker as it receives fuel in the air, June 29, 2014. A compact, multirole fighter aircraft, the F-16 Fighting Falcon is highly maneuverable and has proven itself in air-to-air combat and air-to-surface attack. U.S. Air Force photo by Staff Sgt. Vernon Young

A U.S. soldier assigned to 1st Battalion, 10th Special Forces Group (Airborne), salutes his fellow soldiers while jumping out of a C-130 Hercules aircraft over a drop zone in Germany, Feb. 24, 2015. U.S. Army photo by Visual Information Specialist Jason Johnston