Memorial Day 2013

The U.S. is honouring those killed in America's wars on Memorial Day on Monday, May 27.

Memorial Day Commemorated At Arlington National Cemetery

ARLINGTON, VA - MAY 27: Members of the military stand before the Tomb of the Unknowns at Arlington National Cemetery on May 27, 2013 in Arlington, Virginia. For Memorial Day President Obama is paying tribute to military veterans past and present who have served and sacrificed their lives for their country. (Photo by Mark Wilson/Getty Images)

Moore Continues Slow Recovery One Week After Massive Tornado Hits

MOORE, OK - MAY 27: Dale Brownlow helps a friend recover belongings from a tornado ravaged home early on May 27, 2013 in Moore, Oklahoma. Residents and volunteers observed the Memorial Day holiday by continuing to recover valuables from the destroyed neighborhoods. The tornado of EF5 strength and two miles wide touched down May 20 killing at least 24 people and leaving behind extensive damage to homes and businesses. U.S. President Barack Obama promised federal aid to supplement state and local recovery efforts. (Photo by Tom Pennington/Getty Images)

Memorial Day Commemorated At Arlington National Cemetery

ARLINGTON, VA - MAY 27: A member of the U.S. Army Old Guard stands guard at the Tomb of the Unknowns at Arlington National Cemetery on May 27, 2013 in Arlington, Virginia. For Memorial Day President Obama is paying tribute to military veterans past and present who have served and sacrificed their lives for their country. (Photo by Mark Wilson/Getty Images)

Waterbury, CT Commemorates Memorial Day With Parade

WATERBURY, CT - MAY 26: A couple dressed as Abraham Lincoln and Mary Lincoln embrace as they wait for the Memorial Day Parade to pass on May 26, 2013 in Waterbury, Connecticut. Memorial Day is a federal holiday in America and has been celebrated since the end of the Civil War. Waterbury, once a thriving industrial city with one of the largest brass manufacturing bases in the world, has suffered economically in recent decades as manufacturing jobs have left the area. (Photo by Spencer Platt/Getty Images)

Waterbury, CT Commemorates Memorial Day With Parade

WATERBURY, CT - MAY 26: Korean War veteran John Chiarella watches as the Memorial Day Parade passes on May 26, 2013 in Waterbury, Connecticut. Memorial Day is a federal holiday in America and has been celebrated since the end of the Civil War. Waterbury, once a thriving industrial city with one of the largest brass manufacturing bases in the world, has suffered economically in recent decades as manufacturing jobs have left the area. (Photo by Spencer Platt/Getty Images)