In the Siege of Belgrade from 15 September to 8 October 1789, an army of Habsburg Austria led by Feldmarschall Ernst Gideon Freiherr von Laudon besieged an Ottoman Turkish force in the fortress of Belgrade. After a three-week leaguer, the Austrians stormed and captured the fortress. Austria held the city until 1791 when it handed Belgrade back to the Ottomans according to the terms of the peace treaty. Several Austrian soldiers who distinguished themselves during the siege later held important commands in the French Revolutionary Wars and Napoleonic Wars. Belgrade is the capital of modern Serbia.