Italy had long claimed that Tripoli fell within its zone of influence and that Italy had the right to preserve order within the state. Under the pretext of protecting its own citizens living in Tripoli from the Ottoman government, it declared war against the Ottomans on 29 September 1911, and announced its intention of annexing Tripoli. On 1 October 1911, a naval battle was fought at Prevesa, Greece, and three Ottoman vessels were destroyed.