Other contributors have said "What are the Nazi countries?" is the same question as "What were the Nazi countries?" If you believe that these are not asking the same thing and should be answered differently, click here
The Nazi countries/allies were as follows, Germany, Japan, Italy, Hungary, Romania, Bulgaria, Yugoslavia, Finland, Iraq and Thailand. There were some countries where a large minority supported the axis powers too.
Nazism prided itself on being thoroughly German. (They regarded 'being German' as a matter of race, not nationality).The Nazi were led by Adolf Hitler, and the Nazi are from Germany.Germany.
belguim France czechaslovakia austria Norway to name a few Poland denmark findland Netherlands Italy Albany Sweden Norway Estonia Latvia lithiuania leningrad so what i guess you could say partly...
I think you are asking about invasion. The Germans at that time employed the most motorised army in the world. So usually they rode their tanks trucks and airplanes.