The incoming EU foreign policy chief, Kaja Kallas, wants the European Union to take a tougher stance on China for supporting Russia in its full-scale invasion of Ukraine. “Without China’s support to Russia, Russia would not be able to continue its war with the same force,” Kallas told a European Parliament hearing on Tuesday. The parliament is scrutinizing the EU’s next top diplomat on multiple areas including relations with the United States, the Middle East, China and Ukraine, as part of the process to confirm Kallas’s expected appointment. Kallas said China must pay a “higher cost” for supp…