Today, NATO advertises itself under version 3.0 — a forward-looking orientation to renewing the strength and readiness of its forces while addressing emerging challenges that confront the Alliance. If versions one and two addressed Cold War challenges and out-of-area operations, this third incarnation reinforces the solidarity of the Alliance through increased readiness, strengthened capabilities and credible deterrence to face new challenges. The Allies are engaging in new domains (space and cyber), reinvigorating the command structure and the political controls governing it, recognizing new competitors (China) and facing old adversaries (Russia) with firmness and resolve. There is much to be optimistic about in NATO’s agenda.