You're very welcome. My Dad was in radar maintenance. Most Americans don't remember or never knew about the hundreds of thousands of airmen who protected us by sticking to their posts on cold and lonely remote sites.
They also serve who sit and wait.
Worked many a lone night shift, hoping that the scramble phone didn't ring. Worked Air Defense from 1981 to about 1990. Been doing so again since 9-11. Many folks STILL don't know what we do for them. But that's OK, WE know.