東方問題
The Eastern Question once again became a major European issue when the Greeks declared independence from the Sultan in 1821. It was at about this time that the phrase "Eastern Question" was coined. Ever since the defeat of Napoleon in 1815, there had been rumours that the Emperor of Russia sought to invade the Ottoman Empire, and the Greek Revolt seemed to make an invasion even more likely. The British foreign minister, Robert Stewart, Viscount Castlereagh, as well as the Austrian foreign minister, Metternich, counselled the Emperor of Russia, Alexander I, not to enter the war. Instead, they pleaded that he maintain the Concert of Europe (the spirit of broad collaboration in Europe which had persisted since Napoleon's defeat). A desire for peaceful co-operation was also held by Alexander I, who had founded the Holy Alliance. Rather than immediately putting the Eastern Question to rest by aiding the Greeks and attacking the Ottomans, Alexander wavered, ultimately failing to take any decisive action.