Soldier, my lady. I've been serving or leading for half my life. I went to the Wall at sixteen to defend my lands from those who would want to invade them. I fought in many battles before I was made a king and I feel more comfortable doing that than doing anything else. I'm not even a king any longer. My sister is queen.

( And the North is better for it. Jon thinks he was never really a very good king, only a good commander of troops, and he doesn't have the head for politics that Sansa has. Winterfell is in very good hands. )