All the u.f.o. activity happened or, some still happening in the sky of powerfull countrys. most of them in u.s.(and ally canada) at the peak of cold war tension,some in soviet skies,some in germany,italy,japan during ww2......so,we can make two conclusion 1)aliens love powerfull country. 2)u.f.o. like crafts (secret weapon,spy plane,futuristic aircrafts) are creation of powerfull countrys(mostly u.s. air force,cia)....1st point don't make sense so,the 2nd point is reality. u.f.o.s are all secret military aircraft.area 51 is u.s.a.f. and cia joint base for secret military testing and some alien like creatures are result of various unlawful and cruel genetical experiment on human by various u.s. agency(soviet also) mostly without govt. permission.......you can watch "project blue book" to get some idea(although the sensationalused some incidents) from ettv torrent....
Bro..what a toddler analaysis
If a alien race will decide to examine a planet would it go to a country like Somalia?
Or would it go to a prosperous country with good infrastructure to examine how intelligent life prospers there?
Most people tend to forget the basic thing that alien species will come to earth to spy on us and not to show off their superior planes.
They will come,study and leave..and repeat every time coz we are progressing very fast to see how far we are going and in what direction.
Think about it like this
You are the commander of USS Enterprise..and you are sent to check a habitable planet with intelligent life...tell me what will your objectives be?
I will watch the planet with the highest air planes and technology signature from space aka usa and powerful countries in our case.
Then i will study their technology..once i am sure we have a superiority i will send my drones to probe the planet.
I wont give two fucks about saying hello to lower life forms there running on fossil fuels but i will see what direction is their technology heading to.
i will make a report..send it to my planet and further keep an eye on them as i dont want them to be a threat to me.