The French and Indian war was the North American 's version of the Seven Years' war, which drained the England's treasury leading to increase taxes in order pay for new wares.Three major reasons are 1st, the result of the war was a "no taxation without representation." the war cost a lot of money.2nd, Americans got a taste of fighting and victory that they decided to go against the big countries which really helped the American officers to be trained.Last, the war stage a favorable reversal of alliances when French and Indian War marked the British and Americans while American Revolution marked the British, and so on..