Sorry for my dumb question and lack of knowledge but a thought struck to my mind that why were US people fighting British and other European powers if most of the people fighting for independence were from Europe itself.
As much as I know, North America was populated by Native American tribes before the Europeans came and settled there and pushed them west. Now when colonizing powers like Britain ,France ,Spain etc. colonized North America. I've heard that these govts paid their people to move to "New World".
So what was the reason people who came to US revolted against their(kind off their own) govt?
Reading your description I get the question. But I have to say, the title is pretty garbled.
The American War for Independence is not simple. But the reasons for the initial revolt, the first years of dissent, are pretty straightforward. English settlements expanded west, and in came into conflict with the French empire. That started a war in 1754, the Seven Years War on the European continent, or the French and Indian War in North America. The colonists first attempted to fight that war with their militias, and failed. The British government sent over a professional army, and that was victorious. However, the British government afterwards imposed taxes , to pay for that professional army and the cost of adding the Canadian territories to its North American possessions. It also imposed a western limit on the expansion of English settlements. Both of these measures were very unpopular. The colonists resisted, the British imposed penalties for that resistance, the penalties sparked a revolt, the revolt was met by military action, and the military action created more anger, and the revolt spread.
Now, this is just a bare summary: there are plenty of good books on it, over on the Book List ( Fred Anderson's Crucilble of War is a very good one on the French and Indian War). But the place of the Native Nations in this conflict was important. After more than a hundred years of trading with the Europeans, large confederacies among them had emerged. Those confederacies fought on both sides of the French and Indian War ( despite the name). The Proclamation of 1763, that imposed a limit of westward expansion of English settlements, was an acknowledgement of their power. It made it impossible for settlers to buy land directly from the Native Nations- only the British government had authority to do that- but it made trade possible between them. Unfortunately for the Native Nations, that useful arrangement did not last. They would also be drawn into the War for Independence, fighting on both sides. After the colonists won in 1782, over the next hundred years the Native Nations would be conquered and their lands taken.