Why the US Insists on Going to War?

The USA likes to pick fights and butt in on other people's fights. That's a fact that has been seen many times in our history. When the Indians owned the land in the southern us, the army went in and made them leave so that the American people could come in and have farmland. In WW1 when the French and Germans were fighting in the trenches, we sent men over to die. In Vietnam when South Vietnam was being invaded, we sent thousands to die. The gulf war was fought just because Saddam Hussein did not do what we told him to do. But why did we have to go to war all these times?
I think it is because we are looking after our interests. If the army had not moved the Indians, the US might be much smaller than it currently is. …