Memorial Day is a federal holiday observed annually in the United States on the last Monday of May. Memorial Day is a day of remembering the men and women who died while serving in the United States Armed Forces.

Formerly known as Decoration Day, it originated after the American Civil War to commemorate the Union soldiers who died in the Civil War. By the 20th century Memorial Day had been extended to honor all Americans who have died in all wars. It typically marks the start of the summer vacation season, while Labor Day marks its end.

Many people visit cemeteries and memorials, particularly to honor those who have died in military service. Many volunteers place an American flag on each grave in national cemeteries.

On Memorial Day Obama talks about closure for wars. He notes the end of U.S. combat in Iraq  promises to end it in Afghanistan — and offers Vietnam vets a 'welcome home' that many feel the nation never gave them.

Obama addressed families of fallen American troops in recent wars, reminding them that he put an end to U.S. combat in Iraq and put a timeline on the war in Afghanistan. Hours later, he spoke to graying Vietnam War veterans, commemorating the 50th anniversary of the start of that long conflict, offering them the greeting many feel they had never received.

According to the Los Angeles Times Obama said, "Welcome home, Welcome home. Thank you.”