Chairman of the Joint Chiefs of Staff Adm. Mike Mullen testifies to the Senate Foreign Relations Committee regarding the U.S.-Russia Strategic Arms Reduction Treaty at Dirksen Senate Office Building in Washington, D.C., on May 18, 2010. Mullen was joined by Secretary of Defense Robert M. Gates and Secretary of State Hillary Clinton answering questions from the committee on the arms agreement that measures further reduction and limitations on strategic offensive arms.