Originally Posted by rustle
NATS provide the infrastrucure but the MOD provide the personnel and I believe all UK taxpayers pay toward the MOD.
The MoD are providing the service for the military. NATS pay the MoD to run the service on behalf of civil. So NATS (private company) are offsetting the cost to the taxpayer of providing the MoD emergency Alerting & Fixing service whilst at the same time meeting its licensing obligations

Hope thats clearer.
BD