A joint statement by NATO’s 32 members says that Ukraine is on a quote ‘irreversible’ path to membership. At the alliance’s 75th anniversary summit, they also pledged 40 billion euros of aid to Kyiv next year. But most of that aid is set to come from the bloc’s largest member, the US. And with NATO-sceptic Donald Trump challenging President Biden in November’s election, there’s no assurance of long-term funding.For more on this, we cross over to Brussels and speak with Ian Lesser. He’s a Distinguished Fellow at the German Marshall Fund and his areas of expertise include US foreign policy and NATO.We also talk to Gustav Gressel, Senior Policy Fellow at the European Council on Foreign Relations, he joins us from Berlin.