"Why We Fight" describes the rise and maintenance of the United States military–industrial complex and its 50-year involvement with the wars led by the United States to date, especially its 2003 invasion of Iraq. The documentary asserts that in every decade since World War II, the American public was misled so that the government (incumbent Administration) could take them to war and fuel the military-industrial economy maintaining American political dominance in the world. Interviewed about this matter are politician John McCain, political scientist and former CIA analyst Chalmers Johnson, politician Richard Perle, neoconservative commentator William Kristol, writer Gore Vidal, and public policy expert Joseph Cirincione.