Jason Parmley, from Chattanooga, Tenn., adjusts the sight on a .50-caliber machine gun mount during a live fire exercise aboard the aircraft carrier USS Ronald Reagan. “On our planet, more than 70 percent of which is covered by water, being there means having the ability to act from the sea. Your Navy protects and defends America on the world’s oceans. Navy ships, submarines, aircraft and, most importantly, tens of thousands of America’s finest young men and women are deployed around the world doing just that. They are there now. They will be there when we are sleeping tonight. They will be there every Saturday, Sunday, and holiday this year. They are there around the clock, far from our shores, defending America at all times,” said Media Operations Department Leading Petty Officer David McKee.