If Russia and China were to provide Iran with military, intelligence and technological support, along with the necessary military equipment, particularly in the fields of air defense, aviation, electronics and drones ... then Iran would undoubtedly turn into a dangerous trap for the U.S.
Beijing wants to avoid being drawn into a confrontation with Washington while still demonstrating that it has an independent voice on major international crises.
Washington has demonstrated beyond any doubt that its rift with Europe is irreversible, by deliberately choosing to go to war against Iran without consulting its European allies.