The French and Indian war was the final war in a series of wars that had occurred during the French and Indian Wars between the French and the British, which were mostly fought in the American colonies over control of forts and river trading routes. In this final war, England decided that the battles in Europe were more deserving of their time and left the colonists to fend almost entirely for themselves against the French and the Natives. Also, at the end of all these wars, the British crown was exceedingly poor from all of the military spendings it had encountered. Its solution was to pass a series of taxes in the 1760s and 70s, such as the stamp act, which caused an enraged group of colonists to cry "no taxation without representation". I think you can see where the rest of this goes.