Napoleon continued to entertain a grand scheme to establish a French presence in the Middle East in order to put pressure on Britain and Russia, and perhaps form an alliance with the Ottoman Empire. In February 1806, Ottoman Emperor Selim III finally recognized Napoleon as Emperor. He also opted for an alliance with France, calling France "our sincere and natural ally." That decision brought the Ottoman Empire into a losing war against Russia and Britain. A Franco-Persian alliance was also formed between Napoleon and the Persian Empire of Fat′h-Ali Shah Qajar. It collapsed in 1807, when France and Russia themselves formed an unexpected alliance. In the end, Napoleon had made no effective alliances in the Middle East.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): In what year did Napoleon's Franco-Persian alliance end?
1807