There were at least 11 classified NRO missions, and likely more with NRO tasks. Requirements from the NRO directly influenced the shuttle program design. I gues

There were at least 11 classified NRO missions, and likely more with NRO tasks. Requirements from the NRO directly influenced the shuttle program design. I guess "large" is an exaggeration though. They obviously didn't use Shuttle exclusively for military purposes. But most people don't realize that nearly all government-funded scientific programs in the US also have significant defense/NRO objectives. Even The Dish at Stanford was funded to be used for SIGINT work during the Cold War. I'd wager that these groups are now using advanced robotics to replace classified work previously done via Shuttle missions. i.e. Boeing X-37 I don't think there's any maintenance plan for JWSP, capsule or otherwise. L2 is way too far away. Do you mean maintenance after launch but before deployment?