A line of headstones at Arlington National Cemetery display colorful holiday wreaths designed by Wreaths Across America from Maine evergreen foliage and bright red bows, Dec. 11, 2011, Arlington, Va.

Now in its 20th year, the program transports many thousands of wreaths each holiday season to national cemeteries around the country.

Marine Corps Sgt. Maj. Bryan Battaglia, senior enlisted adviser to the chairman of the Joint Chiefs of Staff, became this year's newest wreath-laying volunteer.

DOD photo by Terri Moon Cronk

See video of Wreaths Across America - Houston 2011