Participants of the Memorial Day Parade march down State street in Chicago, the United States, May 26, 2012. The Memorial Day is a United States federal holiday observed on the last Monday of May. Formerly known as the Decoration Day, it commemorates U.S. soldiers who died in military services. [Xinhua]

People mourn for fallen soldiers at the Eternal Flame Memorial at the Daley Plaza before the Memorial Day Parade in Chicago, the United States, May 26, 2012. The Memorial Day is a United States federal holiday observed on the last Monday of May. Formerly known as the Decoration Day, it commemorates U.S. soldiers who died in military services. [Xinhua]

Soldiers lay wreath at the Eternal Flame Memorial at the Daley Plaza before the Memorial Day Parade in Chicago, the United States, May 26, 2012. The Memorial Day is a United States federal holiday observed on the last Monday of May. Formerly known as the Decoration Day, it commemorates U.S. soldiers who died in military services. [Xinhua]