How should European nations respond to concerns about their role in Ukraine's defense?

According to NATO Secretary General Mark Rutte, European nations should respond proactively rather than just complaining about not having a seat at the negotiation table. He urges them to come forward with concrete proposals and ideas, specifically recommending they ramp up defense spending, ensure continued weapons supplies and training, and develop specific security guarantees for Ukraine. Rutte emphasizes that European participation should be solution-focused, contributing substantive ideas to the strategic discussions. This approach aligns with President Trump's messaging about increasing European defense spending, highlighting a point of agreement between NATO leadership and the incoming U.S. administration regarding Europe taking greater financial responsibility for Ukraine's defense.