We have a friendly rivalry in our neighborhood for the game ( frequently there's a party). We've got three ex-Naval Officers, One Army guy still in the reserves, an ex-Marine, and some AF guys (who kind of sit on the sidelines of this). Years ago when I was a civilian Army employee, I had to run down with a OD truck to the USNA to pick up some equipment a few days before the Army-Navy game. My driver (a spec-5 back in the day) offered to fend of the enemy if we were attacked.