151010-N-AT895-128 NATIONAL HARBOR, Md. (Oct. 10, 2015) Chief of Naval Operations (CNO) Adm. John Richardson, right, Master Chief Petty Officer of the Navy (MCPON) Mike Stevens, left, and Mass Communication Specialist Seaman Apprentice Jacob Milham prepare to cut a cake in honor of the Navy's 240th birthday at the National Capital Region Navy Ball. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)