Navy played host to Air Force on Saturday afternoon in what was an emotional game for everyone involved.

Saturday is the 20th anniversary of the 9/11 terrorist attacks, so patriotism ruled the day across the college football landscape.

Nowhere was that more impressive than at the U.S. service academies. Every Army player ran onto the field carrying an American flag ahead of the Black Knights’ game against Western Kentucky.

Then, in Maryland on Saturday afternoon, Navy and Air Force followed suit. Here’s Navy’s incredible entrance:

And, here’s Air Force making its way onto the field for the game:

The first quarter ended with the score tied 0-0. The game is airing on CBS.