Ukraine President Volodymyr Zelensky (R) with Canadian Prime Minister Mark Carney, Kyiv, August 24, 2025I joined the Canadian Broadcasting Corporation on Sunday, as Prime Minister Mark Carney met President Volodymyr Zelensky in Kyiv, to analyze the Canadian support for Ukraine’s defense against Russia’s invasion. I put the visit and the pledge of another C$2 billion (US$1.45 billion) of military aid into the context of “a marathon, not a sprint” as the Kremlin continues to reject a ceasefire and repeats its ultimata for Ukraine’s capitulation. I note that Canada is likely to join security guarantees for Kyiv, amid the uncertainty over the Trump Administration’s position.