This legislation aims to enforce defense spending obligations among North Atlantic Treaty Organization (NATO) member countries. It grants the Secretary of State the authority to discontinue issuing visas to nationals from any NATO member country that does not allocate at least 2 percent of its gross domestic product to national defense. The bill achieves this by amending Section 243(d) of the Immigration and Nationality Act. Specifically, it adds a new condition under which visa issuance can be halted, linking it directly to a country's failure to meet its NATO defense spending commitment. This measure seeks to leverage visa policy as a tool to encourage compliance with NATO's collective defense burden-sharing goals.