Vladimir Putin is in China for crucial talks with President Xi Jinping, shortly after Russia launched a fresh incursion into Ukraine's Kharkiv region. Putin was received with full military honours, and Xi emphasised their strong 'friendship’. The two countries have issued a joint statement warning of the increased risks of nuclear war amid heightened tensions between nuclear powers. They emphasised that no one can win a nuclear war, and expressed concern over Australia's involvement in the US nuclear deterrence plans. They warned that the conflict in Ukraine could become uncontrollable and outlined plans to deepen military cooperation, including expanding joint military drills. China supports Russia's efforts to ensure sovereignty and territorial integrity, and both nations oppose using space for military confrontation and the seizure of foreign assets. Meanwhile, the Ukrainian military reports that it has forced Russian troops to slow their offensive in the northern Kharkiv region. Some commentators believe Russia is aiming to create a buffer zone near the border. The Kremlin dismissed Switzerland's planned peace summit for Ukraine as futile without Russia's involvement, despite over 50 countries planning to attend.