sentences:  After this success, Reşid Mehmed turned towards Attica and Athens, where he arrived in July.He besieged the Greek garrison on the Acropolis of Athens unsuccessfully for ten months, until his unexpected victory over a Greek relief force at the Battle of Phaleron on 24 April 1827 forced the Greeks to surrender the fort.The Ottoman Bosnian leadership led by Husein Gradaščević were outraged when Sultan Mahmud II granted Serbia autonomy and subsequently six districts from the Bosnia Eyalet with the Treaty of Adrianople.