NATIONAL SECURITY STRATEGY First , ou r f u nda menta l responsibilit y is to protect the American people, the homeland, and the American way of life. We will strengthen control of our borders and reform our immigration system. We will protect our critical infrastructure and go after malicious cyber actors. A layered missile defense system will defend our homeland against missile attacks. And we will pursue threats to their source, so that jihadist terrorists are stopped before they ever reach our borders. ty ranny. We can play a catalytic role in promoting private-sector-led economic growth, helping aspiring partners become future trading and security partners. And we will remain a generous nation, even as we expect others to share responsibility. Strengthening our sovereignty—the first duty of a government is to serve the interests of its own people—is a necessary condition for protecting these four national interests. And as we strengthen our sovereignty we will renew confidence in ourselves as a nation. We are proud of our history, optimistic about America’s future, and confident of the positive example the United States offers to the world. We are also realistic and understand that the American way of life cannot be imposed upon others, nor is it the inevitable culmination of progress. Together with our allies, partners, and aspiring partners, the United States will pursue cooperation with reciprocity. Cooperation means sharing responsibilities and burdens. In trade, fair and reciprocal relationships benefit all with equal levels of market access and opportunities for economic growth. An America First National Security Strategy appreciates that America will catalyze conditions to unleash economic success for America and the world. Second, we will promote American prosperity. We will rejuvenate the American economy for the benefit of American workers and companies. We will insist upon fair and reciprocal economic relationships to address trade imbalances. The United States must preserve our lead in research and technology and protect our economy from competitors who unfairly acquire our intellectual property. And we will embrace America’s energy dominance because unleashing abundant energy resources stimulates our economy. Third, we will preserve peace through strength by rebuilding our military so that it remains preeminent, deters our adversaries, and if necessary, is able to fight and win. We will compete with all tools of national power to ensure that regions of the world are not dominated by one power. We will strengthen America’s capabilities—including in space and cyberspace—and revitalize others that have been neglected. Allies and partners magnify our power. We expect them to shoulder a fair share of the burden of responsibility to protect against common threats. In the United States, free men and women have created the most just and prosperous nation in history. Our generation of Americans is now charged with preserving and defending that precious inheritance. This National Security Strategy shows the way. Fourth, we will advance American inf luence because a world that supports American interests and reflects our values makes America more secure and prosperous. We will compete and lead in multilateral organizations so that American interests and principles are protected. America’s commitment to liberty, democracy, and the rule of law serves as an inspiration for those living under 4