1. United States
2. Iowa
3. Letter

I am writing to urge you to support and actively advance the NATO Unity Protection Act. The United States strengthens its security by defending allies—not by threatening them. Congress must make that principle unmistakably clear. Greenland is a self-governing territory of Denmark, a NATO ally. Any attempt to blockade, occupy, or annex NATO territory would violate treaty obligations, shatter alliance trust, and severely damage U.S. credibility. These are not hypothetical risks; they are foreseeable consequences of unchecked executive rhetoric and action. The NATO Unity Protection Act provides a necessary constitutional guardrail by prohibiting the use of Defense or State Department funds for coercive or military actions against NATO territory without allied consent. This is a proper and essential exercise of Congress’s Article I authority over war powers, funding, and treaty enforcement. I expect you to: • Publicly support and, if applicable, co-sponsor the NATO Unity Protection Act • Vote to advance it promptly through committee and to final passage • Reaffirm that U.S. power exists to uphold alliances and international law, not to undermine them Threatening allies weakens deterrence and emboldens adversaries. Defending NATO unity protects U.S. security and honors our commitments. I will be watching for your public support and concrete action.