This paper blockade was the challenge which called forth the Berlin Decree from Napoleon. American ships, like those of the French, were for a time seized, searched, and detained by the British on the slightest suspicion that they were either leaving or were destined for a hostile port, while their sailors were pitilessly impressed. The government at Washington authorized reprisals, but American ship-owners found it more profitable to compromise than to resist, and Monroe came to an understanding with the English ministry; the prosperity of American shipping was again revived, and the merchants of the United States continued to prosper by carrying English wares under the American flag into harbors where the union jack was forbidden. By this evasion Great Britain retained her commercial supremacy, and her prosperity was rather increased than diminished. She withheld a similar cooeperation from Sweden and Russia until it was too late, her enterprise being chiefly concerned to open new channels for her commerce in Egypt and in South America. How was this leviathan, which was drawing the wealth of all Europe to its stores, and eluding or repelling all attack on its chosen element--how was this tyrant of the ocean to be slain? Clearly the Americans must be so harassed and annoyed that in the end the public spirit of the United States would be aroused to resent English control, and bid defiance to Great Britain's assumption of maritime supremacy. To this end the rigid enforcement of the Berlin Decree would be well adapted in the long run, but in the interval much could be done: if its principle could be extended to the destruction of all smuggling, to the absolute exclusion of British commerce from the entire Continent--not only from the seaports, but from the markets--the end would be gained. With Russia's cooeperation alone was this possible. Napoleon's present plan, therefore, was to secure France and the French Empire, as far as won, by compelling the world to a lasting peace through the immediate establishment of a counterpoise, the French and Russian empires against Great Britain, leaving time to do its perfect work of exasperating the rising naval power of the United States into open hostility against the parent land.