These are the chief clauses of the famous Peace of Tilsit, signed between France and Russia on the 7th July 1807, and between France and Prussia two days later. A secret treaty was also assented to by Alexander and Napoleon, who not only agreed to join their armies in mutual support should either of them decide to make war on any European Power, but mapped out the Eastern Hemisphere as future spoil, Napoleon’s particular plunder being Egypt and the coasts of the Adriatic Sea, which would be extremely useful in French designs against England. The reigning Kings of Spain and Portugal were to be deposed for the special benefit of the Bonaparte family. The Czar also promised that if peace were not made with Great Britain, whereby she recognised the equality of all nations on the ocean highway and handed back the conquests made by her since the year of Trafalgar, Russia and France would together renew the war against England. In that event Denmark, Sweden, Austria and Portugal would also be compelled to join the allies and close their ports against British ships. If the great Sea Power consented to the arrangements so thoughtfully made on her behalf, Hanover was to be given back to George III. England successfully disposed of, the complete domination of the Eastern Hemisphere might come within the range of practical politics. CHAPTER XXI Napoleon’s Commercial War with Great Britain (1807) From the terms of the secret understanding between Napoleon and Alexander at Tilsit, it is obvious that the former had made up his mind to stand or fall in a last desperate encounter with Great Britain. Secure in her island home, that Power alone had been successful in thwarting Napoleon. Her ships and her money were constant menaces to the accomplishment of his over-lordship of the Continent. England’s wooden walls barricaded the principal harbours; by her gold she largely helped to provide the sinews of war which enabled her allies to resist the oppressor. To make war on the sea, to drive it home to the coasts of the enemy, was not possible in the shattered condition of the French marine. How then was her downfall to be brought about? Before his war with Prussia, Napoleon had taken a preliminary step by compelling Frederick William III. to forbid British vessels the use of the ports of his Kingdom and of Hanover. On the 21st November 1806 he augmented his plan by the stringent regulations of the Berlin Decree, so called because it was issued from that city. His powerful rival was to be cut off from all further intercourse with Europe. No letters were to pass, all commerce was to cease, every British subject in France or any country allied to her, or occupied by French troops, was liable to be declared a prisoner of war.