A national security document released by the White House claims that Europe is experiencing 'civilizational erasure' and will become 'unrecognizable in 20 years or less' due to immigration, which it argues has weakened European military capabilities. The 33-page document, titled National Security Strategy and dated November 2025, reflects President Donald Trump’s 'America First' foreign policy, advocating for a reduction in U.S. global commitments and a focus on the Western Hemisphere.

The document, which includes a foreword by Trump, describes itself as a 'roadmap to ensure America remains the greatest and most successful nation in human history.' Experts have noted that the language used in the document aligns with the 'great replacement theory,' a discredited conspiracy theory suggesting that white populations are being systematically replaced by immigrants from nonwhite nations. White House spokesperson Anna Kelly dismissed the comparison as 'total nonsense,' asserting that concerns about immigration are shared by Europeans, who have identified it as a top issue.

The document attributes the economic decline of European nations to 'transnational regulations' associated with the European Union and the changing ethnic composition of the continent. It warns of 'civilizational erasure' and outlines various challenges facing Europe, including migration policies that purportedly create social strife and undermine national identities.

In a section titled 'Promoting European Greatness,' the document emphasizes the need to end mass migration, citing its alleged negative impacts on domestic resources, social cohesion, and national security. Political experts have remarked that the phrase 'civilizational erasure' is consistent with rhetoric from the populist right.

The document also diverges from previous U.S. foreign policy, which viewed European nations as democratic allies against threats such as Russia. Instead, it criticizes NATO allies for pursuing 'unrealistic' goals in the Ukraine conflict and suggests that the U.S. should negotiate a ceasefire with Russia rather than countering it directly.

Additionally, the strategy indicates a shift towards prioritizing U.S. interests in the Western Hemisphere, reminiscent of the Monroe Doctrine, and calls for increased military presence to address issues like illegal migration and drug trafficking. The document outlines plans for targeted military actions against drug traffickers, including lethal force if deemed necessary.

Overall, the national security strategy reflects a significant reorientation of U.S. foreign policy, emphasizing a more isolationist approach while raising concerns about the implications of its rhetoric on immigration and international relations.