If the Ankara summit is to deliver meaningful outcomes rather than symbolic declarations or public disagreements, policymakers on both sides of the Atlantic must act now. Since joining NATO in the 1950s, Türkiye has been a cornerstone of transatlantic security, bridging Europe, the Middle East, and Eurasia. The Ankara summit offers a timely opportunity to revisit the Istanbul Cooperation Initiative, launched at the 2004 NATO Summit in Istanbul. Ultimately, the Ankara summit will serve as a litmus test for NATO’s ability to manage internal differences while responding to external threats. A stable and secure Europe is essential to US prosperity, just as American engagement is vital to European security.