Pedzisa mutsara unotevera: O'Bannon akapinda muMarine Corps musi waJanuary 18, 1801. Semutungamiri mukuru akaendeswa ku, akatungamira chikwata chevarwi vanomwe uye vaviri veNavy midshipmen mune zvematongerwo enyika Consul General William Eaton (1764 <unk> 1811) uto diki panguva yeTripoli mushandirapamwe weFirst Barbary War (1801 <unk> 1805). Mumibato yakabatanidzwa neU.S. Navy, akatungamirira kurwisa kwakabudirira pa
Hondo yeDerna, guta riri pamhenderekedzo yegungwa kumabvazuva kweLibya yemazuva ano musi waApril 27, 1805, ichipa Marines' Hymn mutsara wayo "kune mahombekombe eTripoli". Lieutenant O'Bannon akava munhu wokutanga kusimudza mureza weUnited States pamusoro penyika yokumwe munguva yehondo; mukuru waO'Bannon, William Eaton (1764<unk>1811), aimbova mukuru wemauto, akanga asimudza mureza weAmerica mwedzi yakati yapfuura paaifamba paRwizi rweNire kubva kuAlexandria kuenda kuCairo, asi yakanga isiri munguva yehondo. Maererano nengano yeMarines Corps, Hamet Karamanli akaororwa zvikuru noushingi hwaO'Bannon zvokuti akamupa bakatwa raMameluke sechiratidzo chokuremekedza.