Requires DoD report and GAO review on NATO Eastern Frontier infrastructure readiness

Requires the Secretary of Defense, coordinating with the Secretary of State and consulting SACEUR, to submit a report within 180 days on each listed Eastern Frontier ally’s integration of national infrastructure with NATO requirements.

Specifies report contents: assessments of transportation, energy, communications, financial systems, civil preparedness, defense industrial base, identification of consequential shortfalls, and recommendations including use of U.S. assistance authorities and cost-sharing options.

Requires the Comptroller General to review the DoD report within 180 days, assessing methodology, data sources, analytic rigor, and whether allied expenditures materially improve NATO infrastructure requirements.

Authorizes the Secretary of Defense to prioritize security assistance within the European Deterrence Initiative and related security cooperation programming for the listed Eastern Frontier allies.

Requires annual briefings to congressional defense, foreign affairs, and appropriations committees on how the President’s budget implements the prioritization for fiscal years 2028–2032.