This document discusses leadership theory and overconfidence theory. It examines three leaders - Pervez Musharraf, a former military leader of Pakistan; Tony Blair, a former British Prime Minister; and their decision making abilities and overconfidence. It analyzes Musharraf's overconfidence which led to bad decisions like imposing emergency rule and resigning due to impeachment pressure. It also discusses Blair's success in leading the Labour party to three election victories but making the sad mistake of joining the US invasion of Iraq.