This book explores America's national security strategy, which is focused on renewing American leadership so that we can more effectively advance our interests in the 21st century. This strategy recognises the fundamental connection between our national security, our national competitiveness, resilience, and moral example. It reaffirms America's commitment to pursue our interests through an international system in which all nations have certain rights and responsibilities, which in turn, will allow America to leverage our engagement abroad on behalf of a world in which individuals enjoy more freedom and opportunity, and nations have incentives to act responsibly, while facing consequences when they do not.