The Los Angeles-class fast attack submarine USS Toledo, assigned to Commander, Task Force 54, transits through the Arabian Gulf Jan 21, 2016. (Torrey W. Lee/U.S. Navy)

Sailors recover chocks from a MH-60S Sea Hawk helicopter attached to Helicopter Sea Combat Squadron 25 on the flight deck of the amphibious assault ship USS Bonhomme Richard during flight operations Jan. 22, 2016. (Stacy M. Atkins Ricks/U.S. Navy)

An F/A-18F Super Hornet, assigned to the ''Jolly Rogers'' of Strike Fighter Squadron 103, prepares to launch from the flight deck of aircraft carrier USS Harry S. Truman Jan. 24, 2016. (B. Siens/U.S. Navy)

Marines assigned to combat cargo aboard the amphibious assault ship USS Bonhomme Richard brace for the wind as an MV-22 Osprey attached to Marine Medium Tiltrotor Squadron 265 lands on the flight deck Jan. 25, 2016. (Stacy M. Atkins Ricks/U.S. Navy;)

Petty Officer 3rd Class Maxell Reynolds, from Palm Springs, Calif., takes part in a command swim call aboard the guided-missile cruiser USS Mobile Bay Jan. 26, 2016. (Ryan J. Batchelder/U.S. Navy)

Seaman Dennis Tran, from Riverside, Calif., and Petty Officer 2nd Class Darryl Roberson, from Joliet, Ill., fish off the stern of the guided-missile destroyer USS Stockdale during a fish call Jan. 26, 2016. (David Cox/U.S. Navy)

An F/A-18E Super Hornet assigned to the Gunslingers of Strike Fighter Squadron 106 undergoes preflight checks on the flight deck of the aircraft carrier USS Dwight D. Eisenhower Jan. 27, 2016. (Anderson W. Branch/U.S. Navy)

Petty Officer 2nd Class Dustin Burton, of Coastal Riverine Squadron 10, mans a crew-served weapon aboard a patrol boat in the Gulf of Tadjoura, Djibouti, Jan. 28, 2016. (Perry Lafoe/U.S. Navy)

Airman Valentin Sanchez, from Brownsville, Texas, and Petty Officer 3rd Class Zack Smith, from New Caney, Texas, prepare launchers for F/A-18E Super Hornets on USS John C. Stennis' flight deck Jan. 28, 2016. (Andre T. Richard/U.S. Navy)