Trace Adkins, Harolyn Blackwell, Charles Durning, Gary Sinise, Vanessa Williams and host Joe Mantegna headline this annual salute to military service, which this year honors marines who landed on Iwo Jima in 1945, and the men and women serving in Iraq and Afghanistan today. Music highlights include "God Bless the U.S.A." (Sinise's Lt. Dan's Band); "The Marines' Hymn" (Adkins); "America the Beautiful" (Williams). Also: Colin Powell honors former host Ossie Davis Jr., who died in February 2005.