WARSAW, Poland (AP) — President Joe Biden closed out his wartime visit to Europe on Wednesday, working to shore up partnerships with allies on NATO’s perilous eastern flank — even as Russia’s Vladimir Putin was drawing closer to China for help as his invasion of Ukraine neared the one-year mark. ”NATO Secretary General Jens Stoltenberg, who attended the meeting, pointed to past Russian actions in Georgia and Ukraine and said, “We cannot allow Russia to continue to chip away at European security. But Chinese cooperation on military supplies for Russia’s war in Ukraine would be a significant sign of Beijing’s current appetite for risk-taking when it comes to allying with Russia in a stand against the West