President Trump will be tuning into Saturday’s annual Army-Navy game, he said, and offered his gratitude to the U.S. military for their service.

“Have a great game today, @USArmy and @USNavy – I will be watching. We love our U.S. military. On behalf of an entire Nation, THANK YOU for your sacrifice and service! #ArmyNavyGame #USA,” Trump tweeted.

The U.S. Military Academy and U.S. Naval Academy football teams will face off at Lincoln Financial Field in Philadelphia at 3 p.m. ET as part of a rivalry that has spanned more than 100 years.

Secretary of State Rex Tillerson, Defense Secretary Jim Mattis, and national security adviser H.R. McMaster are all expected to attend, according to ABC News.