Bevo, this Jock baiting etc is all part of the game.
The Army is well known for fighting. In the case of lack of an enemy they will fight people from another regiment - battalion - company - platoon or whoever. The same applies to fans of soccer fans, especially for two teams divided often on religious grounds from the same town or adjacent towns.
Woe betide any foreigner that tries to intervene.
Now of course in the US you never have any inter-service rivalry? Or inter-racial? Or inter-state? Or inter-university? As you are United . . .