150319-N-FI568-145 ATLANTIC OCEAN – Gunner's Mate Seaman Ryan Destefano, a native of Dade City, Florida, loads an M240B machine gun on the fantail of the Nimitz-class aircraft carrier USS Theodore Roosevelt March 19, 2015. Theodore Roosevelt deployed from Norfolk and will execute a homeport shift to San Diego at the conclusion of deployment.Theodore Roosevelt is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe.