The world's leading autocracies -- China, Russia, Iran, and North Korea -- are increasingly drawing on one another's resources, military capabilities, and geopolitical leverage to withstand Western pressure. For Washington, the strategic dilemma is no longer simply whether the four countries are cooperating, but the extent to which their alignment alters the balance of power across multiple theaters simultaneously. The urgency of that question has been laid bare on the battlefront in Ukraine. President Volodymyr Zelenskyy said Russia used North…