Military Diversion

Lots of odd shaped military aircraft have been flying around my neighborhood/city during late night hours. What for? I don't really know. I have some ideas/theories but that's all. I saw one yesterday that seemed to be trying so hard to provide some kind of diversion from other nearby mysterious flying objects. Am I getting paranoid? Not hardly. Could be preparing for some kind of great big defense or tactical operation. But that is still just a theory of mine.