Alien Vehicles & Alien Species Correlation

Hi !

Does anyone have any reliable information about which type of alien vehicle correlates to which type of alien species ?

Also which type of craft correlate to the most Agressive/Intrusive/Malevolent sightings or interactions?

Many of the alien vehicles have crashed after "dogfights" or combat with other alien vehicles. Does anyone have any information as to which species are involved in these skirmishes?

From the history books and from documentaries (history channel ufo files)
it is clear thear have been full on battles in the sky between different alien vehicles over the Switzerland , Germany , Russia & India in the recent past. Is this the same conflict as now?
I look forward to your replies.
Cheers