The development of weapons sufficiently enormous for commonly guaranteed devastation seen as an approach to protect peace is on the grounds that the knowledge that both sides would absolutely be decimated in any hard and fast war would keep either side from beginning threats.
The House is responsible for deciding whether the official is guilty and should be removed the office. They vote on whether the official should be impeached or not. It is the House who conducts the actual impeachment process.
Tecumseh was a tribal leader who thought all Native Americans needed to get together to force US to stop its expansion. Together the Native Americans were strong enough that US would stop to avoid an armed conflict.