Introduction An America that is safe, prosperous, and free at home is an America with the strength, confidence, and will to lead abroad. It is an America that can preserve peace, uphold liberty, and create enduring advantages for the American people. Putt ing America fi rst is the duty of our government and the foundation for U.S. leadership in the world. A strong America is in the vital interests of not only the American people, but also those around the world who want to partner with the United States in pursuit of shared interests, values, and aspirations. Th is National Security Strategy puts America first. A n A merica First Nationa l Securit y Strategy is based on American principles, a clear-eyed assessment of U.S. interests, and a determination to tackle the challenges that we face. It is a strategy of principled realism that is guided by outcomes, not ideology. It is based upon the view that peace, security, and prosperity depend on strong, sovereign nations that respect their citizens at home and cooperate to advance peace abroad. And it is grounded in the realization that American principles are a lasting force for good in the world. separating Federal powers, and protecting the “We the People” is America’s source of strength. Liberty and independence have given us the flour- The United States was born of a desire for life, liberty, and the pursuit of happiness—and a conviction that unaccountable political power is tyranny. For these reasons, our Founders crafted and ratified the Constitution, establishing the republican form of government we enjoy today. The Constitution grants our national government not only specified powers necessary to protect our God-given rights and liberties but also safeguards them by limiting the government’s size and scope, and confident Nation, welcoming of disagree- rights of individuals through the rule of law. All political power is ultimately delegated from, and accountable to, the people. We protect American sovereignty by defending these institutions, traditions, and principles that have allowed us to live in freedom, to build the nation that we love. And we prize our national heritage, for the rare and fragile institutions of republican government can only endure if they are sustained by a culture that cherishes those institutions. ishing society Americans enjoy today—a vibrant ment and differences, but united by the bonds of history, culture, beliefs, and principles that define who we are. We are proud of our roots and honor the wisdom of the past. We are committed to protecting the rights and dignity of every citizen. And we are a nation of laws, because the rule of law is the shield that protects the individual from government corruption 1