They did that because for the small town of Elizabeth town New Jersey to new york
As a matter of a fact many American Indians were taken captive by non-Indians, tortured, murdered and expelled into slavery. Because Europeans in your American colonist threatened native people, many resisted might lead to defend their families and homelands
The industrial revolution did.
In the beginning, the only perceived difference was that they were not Christians so they wanted to baptize them. After the industrial revolution, the European countries developed rapidly while African and Asian countries didn't and Europeans believed that this was due to their superior race so they decided to colonize them under the pretense that they would help them develop.
The answer is nobody. Accounts regarding the 1812 War which lasted from June 18, 1812 to February 18, 1815 never mentioned any exact winner since there is no winner at all. There was a truce between the two opposing sides - the United States of America and the United Kingdom. However, for the perspectives of the Canadian, they won since their territory was not snatched by the US. On the other hand, Americans would say that it was a tie.
