Roosevelt had already found such interference necessary in the case of Germany and Venezuela. But it had been interference in a purely negative sense. He had merely insisted that the European power should not occupy American territory even temporarily. In the later case of the Dominican Republic he supplemented this negative interference with positive action based upon his conviction of the inseparable nature of rights and obligations. Santo Domingo was in its usual state of chronic revolution. The stakes for which the rival forces were continually fighting were the custom houses, for they were the only certain sources of revenue and their receipts were the only reliable security which could be offered to foreign capitalists in support of loans. So thoroughgoing was the demoralization of the Republic's affairs that at one time there were two rival "governments" in the island and a revolution going on against each. One of these governments was once to be found at sea in a small gunboat but still insisting that, as the only legitimate government, it was entitled to declare war or peace or, more particularly, to make loans. The national debt of the Republic had mounted to $32,280,000 of which some $22,000,000 was owed to European creditors. The interest due on it in the year 1905 was two and a half million dollars. The whole situation was ripe for intervention by one or more European governments. Such action President Roosevelt could not permit. But he could not ignore the validity of the debts which the Republic had contracted or the justice of the demand for the payment of at least the interest. "It cannot in the long run prove possible," he said, "for the United States to protect delinquent American nations from punishment for the non-performance of their duties unless she undertakes to make them perform their duties." So he invented a plan, which, by reason of its success in the Dominican case and its subsequent application and extension by later administrations, has come to be a thoroughly accepted part of the foreign policy of the United States. It ought to be known as the Roosevelt Plan, just as the amplification of the Monroe Doctrine already outlined might well be known as the Roosevelt Doctrine.