 On April 24, 1821, he defeated the Greeks at the Battle of Alamana and had their commander, Athanasios Diakos, impaled.Vrioni's advance was temporarily halted by Odysseas Androutsos who, with a handful of men, inflicted heavy casualties upon him at the Battle of the inn of Gravia on May 8, 1821.In late 1822, he and Mehmed Reshid Pasha joined forces to besiege the town of Missolonghi.