No, the AF may drop you in an instant if they feel like it.  If you were to leave tomorrow, do you think Big Blue would screech to a halt?  Probably not.  The wheel will keep on spinning.  However, after 20 years if your then ex-wife hates you and your kids barely know you, what have you really gained? 
 
Service before self?  You bet.  Service before my kids?  To a point.