Ramba uchiverenga ndima iyi - Callaghan akava mukuru mukuru wechikepe uye akachidzora pakufamba muchirimo cha1901 asati ava mukuru mukuru wechikepe chehondo paMediterranean Station muna December 1901. Akapfuurira kuva Kaputeni wePortsmouth Dockyard pakuvamba muna 1904 uye mukuru mukuru wehondo paMediterranean Station nokukurumidza pashure pacho. Akagadzwa kuva mutevedzeri wamambo wehondo kuna Mambo musi wa 25 April 1904. Akakwidziridzwa kuva rear-admiral musi wa 1 Chikunguru 1905, akazova wechipiri-mu-Chikumbiro, Channel Fleet, aine mureza wake mungarava yehondo, muna 1906 uye mutungamiri we5th Cruiser Squadron, aine mureza wake mungarava yehondo, muna 1907. Akagadzwa Commander weRoyal Victorian Order musi wa3 Nyamavhuvhu 1907, akaenderera mberi kuve wechipiri-mu-Mukuru weMediterranean Fleet aine mureza wake mungarava yehondo muna 1908. Muchikamu chekupedzisira akabatsira nekupa rubatsiro kune vakapona kudengenyeka kweMessina
, iyo yakakonzera kurasikirwa kweanenge 123,000 hupenyu, muna Zvita 1908 iyo yaakakwidziridzwa kuita Knight Commander weRoyal Victorian Order musi wa30 Kubvumbi 1909 uye akagadzwa Grand Officer weOrder yeCrown yeItaly musi wa15 Kubvumbi 1912. Akakwidziridzwa kuva Vice-Admiral musi wa 27 April 1910, akava wechipiri-mu-Command weHome Fleet, aine mureza wake muhondo yekupedzisira mwedzi iwoyo. Akakwidziridzwa kuva Knight Commander weOrder yeBhati musi wa 24 Chikumi 1910.