US to Submit Formal NATO European Force-Level Plan to Allies in June — Ahead of Ankara Summit

Reports emerging May 31, 2026 indicate the United States is preparing to submit a formalized European troop-withdrawal and military hardware reduction plan to NATO allies as early as June 2026 — establishing a documented timeline before the Ankara Leaders' Summit (July 7–8). The plan would formally codify the already-announced force reductions: the ~10,200+ personnel withdrawal from Germany (5,000 troops from Grafenwöhr area), the cancelled 4,700-soldier 2nd Armored Brigade Combat Team rotation to Poland, and the cancelled 500-soldier rocket and missile battalion, as well as the hardware cut framework disclosed by Pentagon adviser Alexander Velez-Green to European allies at a confidential NATO Brussels meeting on May 26 (fighter jets available to NATO cut by one-third, bombers halved, zero submarines, zero drones). **Why June timing matters:** European allies have been pressing Washington for a formal planning document since the Helsingborg emergency Foreign Ministers Meeting (May 21–22) produced no withdrawal parameters. NATO SG Rutte specifically stated at Helsingborg that the June timeline was critical for allies to develop credible gap-filling plans before Ankara. Secretary Rubio at Helsingborg acknowledged that 'there's a broad recognition that there are going to be eventually less US troops in Europe than there has historically been.' A June submission would give European defense ministries six weeks to develop national contingency plans for formal Ankara presentation. **NDAA §1249 constraint:** The US National Defense Authorization Act Section 1249 bars the US from reducing European-based forces below 76,000 without congressional authorization — a legal floor that the 10,200+ confirmed reductions now approach (from ~80,000+). Any formal June plan must navigate this legislative constraint, which the Trump administration's Pentagon has contested as a constitutionally overreaching restriction on executive force deployment authority. **Context:** The June plan submission would be the first formal US-to-NATO communication of a multi-domain force structure reduction since NATO's founding. Previous US force adjustments in Europe were managed through SACEUR channels without public NATO documentation. The formal notification framework mirrors — at NATO institutional level — the Spiegel-disclosed confidential notification of May 26, which was delivered through an adviser, not through formal NATO channels.