150703-N-GR120-324 ARABIAN GULF -- Members of the band The Mulligan Brothers perform for Sailors in the hangar bay aboard the aircraft carrier USS Theodore Roosevelt. The Mulligan Brothers were brought on board as part of a Navy Entertainment sponsored event. Theodore Roosevelt is deployed in the U.S. 5th Fleet area of operations supporting Operation Inherent Resolve, strike operations in Iraq and Syria as directed, maritime security operations and theater security cooperation efforts in the region.