These are the Presidential traditions around the Army-Navy game
Throughout the years, the meeting between the two largest rivals in college football has been known as "The President's Game" because of how intertwined the game is with the Commander-in-Chief. Many of the traditions surrounding the game — and perhaps the game itself — are owed to President Theodore Roosevelt. In 1893, after the first four Army-Navy games, football was deemed "too unsafe" by President Grover Cleveland and future games were prohibited. After all, players were bloodied, fights broke out between fans, and, at one point, an Army General and Navy Admiral nearly dueled to the death over a game.
It wasn't until 1897 that President Roosevelt — undeniably the manliest president America has ever seen — wrote a letter urging the reinstatement of the game. In 1899, it returned, but was as dangerous as ever. Later, President Roosevelt also saw to revamping the rules of the game. He made sure pads and gear were worn, adding safety but maintaining the sport's intensity. Roosevelt attended the game in 1901 and laid down traditions for future presidents to emulate.
To date, only nine sitting presidents have attended the game: Roosevelt, Wilson, Coolidge, Truman, Kennedy, Ford, Clinton, George W. Bush, and Obama. Last year, then President-elect Donald Trump attended, making him the only President-elect to watch the game in person. President Truman holds the record at seven games, followed by President George W. Bush at three. Presidents that attend are usually asked to perform the coin toss at the start of the game.
President Eisenhower was the only President to ever play in the game, but never attend while in office. President Carter, despite having gone to the Naval Academy, never attended while in office. Between 1924 and 1945, no sitting President went to "The President's Game."
There was another gap in attendance starting in 1963, when President Ford came to cheer for both teams on for the 75th anniversary of the Army-Navy game, and 1995. Since then, Presidents have made an appearance regularly.
Another tradition started by President Roosevelt is walking across the field at half-time. This symbolic gesture shows good will and faith between both teams and the President. Even Presidents who had served in the Navy or Army, like Kennedy and Ford respectively, put their histories aside for the sake of tradition (although they both started on their service's side).
The only President to not do this was the seven-time attendee Truman, who stayed comfortably on one side. Don't worry, he switched sides for the next game.