Before starting, I would like to say that we don’t know yet exactly how many alien species are visiting our world.
Maybe some of them just gardeners, or they are observing our evolution like we are watching how worms are evolving.
The worst could be that if Russians shot down friendly aliens this might be turn for humanity’s destruction.
Declassified CIA report claims that, russian soldiers are zapped by aliens after they attacked by surface to air missile.
Source: Corsair TR