For 10 points, name this system by which Napoleon tried to keep Britain out of Europe's trade.
This policy prompted the creation of factories to implement Franz Achard's theories of sugar beet production. NonÂ­compliance with this policy forced John VI and Maria I to flee with their 15,000 person court to Salvador, Brazil. The initiator of this policy claimed that its target was a "nation of shopkeepers." The immediate response to this policy included Lord Cathcart's bombardment of (*) Copenhagen and the issuance of the Orders of Council. This policy was begun by the Berlin Decree and strengthened by the Milan Decree. After joining it by the Treaty of Tilsit, Russia withdrew from this system in 1812, prompting a disastrous invasion. For 10 points, name this system by which Napoleon tried to keep Britain out of Europe's trade.
This policy prompted the creation of factories to implement Franz Achard's theories of sugar beet production.
Continental System [or Continental Blockade; or Blocus continental; prompt on "Napoleon's blockade of Britain" or similar answers]