150322-N-ZZ999-031 ATLANTIC OCEAN Commanding Officer of the Nimitz-class aircraft carrier USS Theodore Roosevelt Capt. Daniel Grieco, left, receives a token of appreciation from the Swedish Minister of Defence Peter Hultqvist aboard Theodore Roosevelt March 22, 2015. Theodore Roosevelt, homeported in Norfolk, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe.