The federal government wanted to assimilate and introduce the natives to the American way of living and to integrate them into the society.
The Magna Carta established the basis for representative democracy as it was the first attempt after the fall of the classical Graeco-Roman era of a form of parliament, where nobles would meet to deliberate the course of society,and advise the kings on policy issues. It was a paradigm shift from the absolute politics and power structures of dark Europe, forming to inspire future government discussions in England and USA.
The monarchs had used their wealth to fund expeditions for explorers. The explorers would’ve worked for them in exchange for expedition fund or to at least acquire a better chance at being funded.
It was trench warfare that was used to a great extent in World War I. This led to a significant elongation of the conflict, since targeting soldiers was much harder.