How did western settlement, particularly in terms of railroad expansion and farming, lead to inevitable conflicts with the native americans? highlight at least one engagement in your answer?

Native Americans being here first and being cruely, without any explanation pushed and shoved into reservations, would quickly make conflict. Railroad expansion intruded their space, their way of life, their culture. Farming on what was and to them will always be their land. They are aborígnes to the land which makes perfect sense why this would cause conflict. Still today they are retained and stuck in reservations, where there has been proof that Native Americans were even poisoned in their rivers that they drank from, and drink from today.