Emmanuel Macron expressed serious concerns about the G20's ability to manage international crises and warned it risks decline unless member nations re-engage on key priorities.Western leaders discussed a leaked US peace plan for Ukraine, requiring revisions and emphasizing that borders should not change by force and EU and NATO consent is necessary.British Prime Minister Keir Starmer stressed Ukraine's right to defend itself and planned discussions with Joe Biden, while the absence of Donald Trump, Vladimir Putin, and China’s representatives raised concerns about G20's credibility.