In March and April 1940, on the pretext of German aggression, British plans for an invasion of Norway were prepared, mainly in order to reach and destroy the Swedish iron ore mines in Gällivare. It was hoped that this would divert German forces away from France, and open a war front in south Sweden.
The Nazis believed that Norwegians were racially (although not culturally) superior to Germans, and Hitler hoped to win them over to his worldview. Rather than deploy the policies of mass extermination and slave labor used in Eastern Europe, he courted them using propaganda and incentives.
The U.S used the Texas-Mexico border dispute to annex Texas as a state and gain more land from Mexico. Basically all the land that Mexico owned in North America was given to the U.S after the U.S defeated Mexico in the war.
The type of society that uses a traditional economic system would typically be an ethnic group or tribe. The traditional system is not typically used on a national level. Traditional economic systems answer basic economic questions by use of ritual, habit, or custom.
Plato's ideas sound spooky and odd and unscientific but because of the huge influence he has had on the western world view the theory of forms is basically already in layman's terms for us today.