Marine Gen. James Mattis (left), commander of U.S. Central Command, and Navy Adm. William H. McRaven, commander of U.S. Special Operations Command, testify before the Senate Armed Services Committee on Tuesday. (Andrew Harnik/The Washington Times)

Marine Gen. James Mattis (left), commander of U.S. Central Command, and Navy Adm. William H. McRaven, commander of U.S. Special Operations Command, testify before the Senate Armed Services Committee on Tuesday. (Andrew Harnik/The Washington Times)