TRICARE doesn't vanish the moment you separate, but it doesn't continue on autopilot either. What happens to your coverage depends heavily on how you left service, whether you're retiring or separating, and how quickly you act.

The riskiest period for most families isn't years down the road, it's the first few weeks and months after separation, when people assume they're still covered and find out otherwise at the pharmacy counter or in an ER waiting room.