With Saturday marking the 20th anniversary of the September 11, 2001 terrorist attacks on the United States, college football teams across the country planned tributes to commemorate the lives lost on a day that brought sports world to a halt, and few were more poignant than those staged by the service academies. 

As Army ran onto the field before its win over Western Kentucky, each Black Knights player carried an American flag. The players for Air Force and Navy did the same before their game against each other in Annapolis, Maryland.

But the tributes spanned across the country, including far into the heartland, where Nebraska stretched an American flag shaped like the nation across midfield before its game against Buffalo. The Ohio State band formed to spell "Remember" before the No. 3 Buckeyes' loss to No. 12 Oregon. Among the other acknowledgements were special uniforms and uniform features to honor the victims and celebrate a nation that will be in a collective state of reflection.

Rutgers, the FBS program located closest to New York City and the epicenter of the 9/11 attacks, unveiled a "Never Forget" theme for the uniforms it will wear Saturday at Syracuse. The Scarlet Knights also had "Never Forget" on their helmets, jerseys and gloves and an American flag on their helmets. Florida wore special helmets for its game at USF, as the "Gators" lettering on the team's headgear was colored in with an American flag theme. In the Sun Belt, South Alabama's helmets were outfitted with decals listing the names of all 2,983 lives lost on 9/11.

Boston College focused on a single hero from that day as it honored Welles Crowther, a BC alum and volunteer firefighter who worked at the World Trade Center. Crowther is credited with saving several lives before losing his own during the attack. Survivors remember seeing a man wearing a red bandanna over his face ushering people out of the south tower, and BC's uniforms for its game at UMass incorporated the bandanna theme.

Here is a look at some of the tributes: