There is a broad consensus that the current, large US current-account deficits financed with foreign capital inflows at low interest rates cannot continue forever; there is much less consensus on when the system is likely to end and how badly it will end. The paper resurrects the basic principles of the plan Keynes wrote for the Bretton Woods Conference to propose an alternative to the current international monetary system. We argue for the creation of a supranational bank money that would coexist along side national currencies and for the establishment of a new international clearing union. The new international money would be created against domestic earning assets of the Fed and the ECB. In addition to recording credit and debit entries of the supranational bank money, the new agency would determine the size of quotas, the size and time length of overdrafts, and the coordination of monetary policies. The substitution of supranational bank money for dollars would harden the external constraint of the United States and resolve the n-1 redundancy problem.