US Observes Memorial Day

A tombstone is decorated at Levenworth National Cemetery on the eve of Memorial Day, May 27, 2018, in Leavenworth, Kansas.

June Allums Flowers looks at the name of her brother Allen W. Allums at Vietnam Veterans Memorial wall ahead of Memorial Day, May 27, 2018, in Washington.

Patrica Kelly pauses at her father's grave at Levenworth National Cemetery on the eve of Memorial Day, May 27, 2018, in Leavenworth, Kansas.

A member of the U.S. Army 3rd Infantry Regiment walks his post in front of The Tomb of the Unknown Soldier in Arlington National Cemetery during the Memorial Day weekend in Arlington, Virginia, May 27, 2018.

People attend a Memorial Day commemoration at the Aisne-Marne American Cemetery in Belleau, France, May 27, 2018.

A U.S. Marine Corps detail fires a volley during a Memorial Day commemoration at the Aisne-Marne American Cemetery in Belleau, France, May 27, 2018.

Belgian soldiers stand in front of graves during a Memorial Day Ceremony at the Flanders Fields American Cemetery in Waregem, Belgium, May 27, 2018.

Participants in the Rolling Thunder motorcycle rally ride past Arlington Memorial Bridge, during the annual Rolling Thunder parade, ahead of Memorial Day, May 27, 2018, in Washington.

A man holds his dog, as participants gather in the parking lot of the Pentagon as thousands of military veterans and their supporters participate in the 31st annual Rolling Thunder motorcycle rally and Memorial Day weekend "Ride for Freedom" motorcycle procession in Washington, May 27, 2018.

Boy Scouts and Girl Scouts walk between grave stones after helping place flags at the Los Angeles National Cemetery, May 26, 2018.