To compete with other European countries,
To expand global influence
To compete with growing public perferance and reduction of truama from the revolutionary war
The Maya were native people of Mexico and Central America, while Aztec covered most of northern Mesoamerica.
The Nazis expressed hatred toward people who didn't fit their standards, either ideologically, or physiologically. These people included Jews, homosexuals, Gypsies, Slavs, and many others.
They were a rather hateful group.
Hope that helped =)