A soldier in the Third U.S. Infantry Regiment places an American flag at a gravestone at Arlington National Cemetery in Virginia in preparation for the Memorial Day ceremony.
More than 6,000 volunteers will be placing American flags at the 172,000 graves at Calverton National Cemetery on New York's Long Island.
Every year, American flags are placed at each grave at Fort Bliss National Cemetery near El Paso, Texas, in honor of Memorial Day.
Law enforcement officials salute during a Memorial Day ceremony at Florida National Cemetery in Bushnell, Fla., last year.
Military service members lay a wreath during a Memorial Day ceremony at Quantico National Cemetery in Triangle, Va., last year.
A Marine plays a trumpet at a Memorial Day ceremony at Quantico National Cemetery in Triangle, Va.
An "Avenue of Flags" lines the roadway to San Joaquin National Cemetery in Gustine, Calif., on Memorial Day last year. Many of the flags are donated by families and friends who receive them at soldiers' burials.
The Third U.S. Infantry Regiment lays small American flags at each of the more than 260,000 graves at Arlington National Cemetery in Virginia each year.
Service members from all military branches are volunteering to place American flags next to hundreds of thousands of gravestones in military cemeteries nationwide, part of a massive coordinated effort the military has dubbed "Flags In." In Arlington National Cemetery alone, troops and volunteers will decorate more than 260,000 graves.