The U.S. could enact strict economic sanctions against China should it support Russia’s war in Ukraine with weapons and munitions…Washington has already issued several warnings to deter Beijing from taking the course…The Pentagon, Treasury Secretary Janet Yellen, Secretary of State Antony Blinken and U.S. Ambassador to the United Nations Linda Thomas-Greenfield all warned of consequences should China supply Russia with arms, but they have not made clear what the retaliatory action would be.