Open borders is one of the top three threats to the nation, says President Donald Trump’s new security strategy.

The strategy discards progressives’ insistent demands that the United States subordinate itself to a world of open borders and international government, and it establishes Trump’s campaign promise to put nation states at the center of the nation’s national security policy. It says:

My Administration’s National Security Strategy lays out a strategic vision for protecting the American people and preserving our way of life, promoting our prosperity, preserving peace through strength, and advancing American influence in the world. We will pursue this beautiful vision—a world of strong, sovereign, and independent nations, each with its own cultures and dreams, thriving side-by-side in prosperity, freedom, and peace—throughout the upcoming year.

The report then puts border security in the top three security priorities for the Trump administration:

The report, titled “National Security Strategy of the United States of America,” declares:

Strengthening control over our borders and immigration system is central to national security, economic prosperity, and the rule of law. Terrorists, drug traffickers, and criminal cartels exploit porous borders and threaten U.S. security and public safety. These actors adapt quickly to outpace our defenses. The United States affirms our sovereign right to determine who should enter our country and under what circumstances. The United States understands the contributions immigrants have made to our Nation throughout its history. Illegal immigration, however, burdens the economy, hurts American workers, presents public safety risks, and enriches smugglers and other criminals. The United States recognizes that decisions about who to legally admit for residency, citizenship, or otherwise are among the most important a country has to make. The United States will continue to welcome lawful immigrants who do not pose a security threat and whose entry is consistent with the national interest, while at the same time enhancing the screening and vetting of travelers, closing dangerous loopholes, revising outdated laws, and eliminating easily exploited vulnerabilities. We will also reform our current immigration system, which, contrary to our national interest and national security, allows for randomized entry and extended-family chain migration. Residency and citizenship determinations should be based on individuals’ merits and their ability to positively contribute to U.S. society, rather than chance or extended family connections. Priority Actions ENHANCE BORDER SECURITY: We will secure our borders through the construction of a border wall, the use of multilayered defenses and advanced technology, the employment of additional personnel, and other measures. The U.S. Government will work with foreign partners to deter, detect, and disrupt suspicious individuals well before they enter the United States. ENHANCE VETTING: The U.S. Government will enhance vetting of prospective immigrants, refugees, and other foreign visitors to identify individuals who might pose a risk to national security or public safety. We will set higher security standards to ensure that we keep dangerous people out of the United States and enhance our information collection and analysis to identify those who may already be within our borders. ENFORCE IMMIGRATION LAWS: We will enforce immigration laws, both at the border and in the interior, to provide an effective deterrent to illegal immigration. e apprehension and swift removal of illegal aliens at the border is critical to an effective border security strategy. We must also increase efforts to identify and counter fraud in the immigration process, which undermines the integrity of our immigration system, exploits vulnerable individuals, and creates national security risks. BOLSTER TRANSPORTATION SECURITY: We will improve information sharing across our government and with foreign partners to enhance the security of the pathways through which people and goods enter the country. We will invest in technology to counter emerging threats to our aviation, surface, and maritime transportation sectors. We will also work with international and industry partners to raise security standards.

Read it all here.