A notable incident in the war was the expedition undertaken by diplomatic Consul William Eaton with the objective of replacing the pasha with an elder brother living in exile, who had promised to accede to all the wishes of the United States. Eaton, at the head of a mixed force of US Soldiers, Sailors, and Marines, along with Greek, Arab and Turkish mercenaries numbering approximately 500, marched across the Egyptian / Libyan desert from Alexandria, Egypt and with the aid of three American warships, succeeded in capturing Derna. Soon afterward, on 3 June 1805, peace was concluded. The pasha ended his demands and received $60,000 as ransom for the "Philadelphia" prisoners under the 1805 Treaty with Tripoli.