NATO supports Ukraine and continues to deepen a partnership built through more than three decades of cooperation with NATO Allies. Allies are supporting Ukraine’s ability to defend itself against Russia’s aggression, including through unprecedented military assistance. This partnership strengthens Ukraine’s security and contributes to a stronger Alliance.Russia’s full-scale war of aggression has highlighted the realities of modern conflict and the speed at which forces must adapt, from rapid decision-making and resilience to secure connectivity across land, sea, air, cyber, and space. It reinforces why NATO must keep transforming for tomorrow’s security environment, strengthening deterrence and defence while continuing to stand with Ukraine in its existential struggle.In this episode of Transformation Brief, Colonel Valerii Vyshnivskyi, Senior Ukrainian Representative at the NATO-Ukraine Joint Analysis, Training and Education Centre, shares how Ukraine’s battlefield experience is shaping NATO’s thinking, with adaptation speed, interoperability, and civil-military innovation proving decisive in modern war.