In the build-up to the 2023 NATO summit in Vilnius, Lithuania, the sense of history was palpable. The original NATO construct of 12 members, formed in 1949, is now 31 and will soon be 32 with Sweden’s accession. The alliance has endured plenty of instability in its lifetime, through the Cold War, the Suez crisis, the encircling of West Berlin and much more. Russia’s unrelenting 17-month war in Ukraine, a clear eye on China’s coercive behaviour and internal disagreements about the organisation’s role in the Indo-Pacific gave a sense of urgency and occasion to the summit, including for Australia.