Yes, I do. I have heard of it.
The alliance system in Europe basically was if one country went to war, all of the other countries in that alliance would back up their buddy and go to war as well. This is what happened when Archduke Franz Ferdinand was assassinated and Austria-Hungary was arguing with Bosnia and each of their alliances go pulled in with them too.
The US, England, Soviet Union, and France.
A person against democracy - Hitler was one
The increase of priced goods or money. For say, the USD was $1 one year and 93 cents the next
They were worried about what would happen if Germany won.
The Frontier Thesis or Turner Thesis, is the argument advanced by historian Frederick Jackson Turner in 1893 that American democracy was formed by the American frontier. He stressed the process—the moving frontier line—and the impact it had on pioneers going through the process.