170318-M-MH051-231 WASHINGTON (March 18, 2017) Marine pilots assigned to Marine Helicopter Squadron 1 practice landing and take-offs with Marine One on the south lawn of the White House in Washington, D.C. The Marine pilots practice manuevering the Sikorsky SH-3 Sea King helicopter during their training to support the President of the United States. (U.S. Marine Corps photo by Lance Cpl. Micha R. Pierce/Released)