In Pictures: US Observes Memorial Day

President Donald Trump attends a wreath laying ceremony at Arlington National Cemetery, May 29, 2017, in Arlington, Virginia.

Members of the audience stand as flag bearers walk into the Memorial Amphitheater in Arlington National Cemetery in Arlington, May 29, 2017, to begin the Memorial Day ceremony.

President Donald Trump speaks at the Memorial Amphitheater in Arlington National Cemetery in Arlington, Virginia, May 29, 2017, during a Memorial Day ceremony.

World War II veteran and Pearl Harbor survivor Armando "Chick" Galella (L) tosses a floral wreath following an annual Memorial Day commemoration ceremony at the Intrepid museum in New York, May 29, 2017.

Members of the veterans support group "Ruck to Remember" walk along the National Mall in Washington, May 29, 2017, as they continue their Memorial Day march to Arlington National Cemetery.

President Donald Trump participates in a wreath laying ceremony at Arlington National Cemetery in Arlington, Virginia, May 29, 2017.

Playing a tribute to veterans, retired U.S. Navy yeoman Mark Stallins of Denver performs in Fort Logan National Cemetery, May 28, 2017, in southwest Denver, Colorado.

A member of the National Park Service inspects the walkway at the World War II Memorial early in the morning before the Memorial Day events in Washington, May 29, 2017.

Flags mark graves at Leavenworth National Cemetery on the eve of Memorial Day, May 28, 2017, in Leavenworth, Kansas.