The interaction between the white man and Indian introduced new words and technologies into each other culture. The white man absorbed the snowshoe, canoe, tobacco and corn, whereas the Indian absorbed the rifle, the kettle and many household items into their culture.
The companies were more about controlling an area's economy more than grabbing and controlling land. By controlling the economy, they could better profit off the areas, with little to no political impact. However, when needed, they could and would use their political might. The wealth that the companies had gave them great leverage in the political world.
At the end of WWII, the United States, Britain and the Soviet Union had met in Yalta in 1945 to decide how to reorganize the Europe and Germany. France was excluded and some of the agreements were respected and others were not. The US used the Marshall Plan to inject billions of dollars into the economies of Western Europe and Greece and ensure an access to American corporations and products. Then they formed NATO in 1949 which still exists and has been expanded to several new countries since the end of the Cold War. The Soviet Union on the other hand provided logistics and some financial support for the reconstruction of Eastern European countries and occupied them militarily, making sure that Stalinist Communist regimes were “democratically elected” in each of these countries. In 1955 they Created the Warsaw Pact which antagonized NATO until its dissolution in 1991.