Question: when did greece become independent from the ottoman empire
Answer: Greek War of Independence Clockwise : The camp of Georgios Karaiskakis at Kastella , burning of a Turkish frigate by a Greek fire ship , Ibrahim Pasha of Egypt at the Third Siege of Missolonghi , Battle of Navarino Date 21 February 1821 -- 12 September 1829 ( 8 years , 6 months and 3 weeks ) Location Greece ( including Aegean Sea ) Result Greek independence : Establishment of the First Hellenic Republic ( 1822 -- 1832 ) Start of the Russo - Turkish War ( 1828 -- 1829 ) London Protocol Treaty of Constantinople Establishment of the Kingdom of Greece ( 1832 ) Start of the First Egyptian - Ottoman War Territorial changes The Peloponnese , Saronic Islands , Cyclades , Sporades and , Continental Greece ceded to the independent Greek state Crete ceded to Egypt Belligerents Greek revolutionaries ( 1821 ) First Hellenic Republic ( from 1822 ) Supported by : Russian Empire ( after 1827 ) United Kingdom ( after 1823 ) France Haiti