What is the central idea of nazi race theory?

In Nazi propaganda the "Mediterranean" race was described as brown-haired, brown-eyed, light skinned but slightly darker than their Northern European counterparts, and short …

"Hitler's Nazi theory also claimed that the Aryan race is a master race, superior to all other races, that a nation is the highest creation of a race, and great nations (literally large nations) were the creation of great races."

Explanation:

http://www.nazism.net/about/ideological_theory/

The World War II Battle of Guadalcanal was the first major offensive and a decisive victory for the Allies in the Pacific theater. With Japanese troops stationed in this section of the Solomon Islands, U.S. marines launched a surprise attack in August 1942 and took control of an air base under construction.