RAF Molesworth launch tower

[Warmtoast]

Not sure why you'd expect to see USAF assets there either....it's mainly a USN operation isn't it ?

According to the FAS website:

Personnel from all four U.S. military services are assigned to the Joint Analysis Center and contribute to the intelligence mission.

More info here: Joint Analysis Center - EUCOM

And the co-located NATO Intelligence Fusion Center here:
NATO Intelligence Fusion Center opens in England | Stars and Stripes