Dee ihe na-aga n'ihu na paragraf a - Callaghan ghọrọ onye isi ndị agha nke ụgbọ mmiri ahụ ma nye ya iwu na-eme ihe na-eme n'oge okpomọkụ 1901 tupu ọ bụrụ onye isi ndị agha nke ụgbọ agha na Mediterranean Station na December 1901. Ọ gara n'ihu bụrụ onye isi nke Portsmouth Dockyard na mbido 1904 na onye isi ndị agha nke ụgbọ agha na Mediterranean Station obere oge ka nke ahụ gasịrị. A họpụtara ya onye enyemaka nke ndị agha mmiri nye Eze na 25 Eprel 1904. E buliri ya n'ọkwa onye isi ndị agha na 1 Julaị 1905, ọ ghọrọ onye isi nke abụọ, Channel Fleet, na ọkọlọtọ ya n'ụgbọ agha, na 1906 na onye isi nke 5th Cruiser Squadron, na ọkọlọtọ ya n'ụgbọ agha agha, na 1907. A họpụtara ya onye isi nke Royal Victorian Order na 3 August 1907, ọ gara n'ihu ịbụ onye nke abụọ na-achịkwa ndị Mediterranean Fleet na ọkọlọtọ ya na agha agha na 1908. N'ọrụ nke ikpeazụ a, o nyere aka n'inye ndị lanarịrị ala ọma jijiji Messina enyemaka.
, nke butere ọnwụ nke ihe dị ka mmadụ 123,000, na Disemba 1908, nke a mere ka ọ bụrụ Knight Commander nke Royal Victorian Order na 30 Eprel 1909 ma họpụta ya onye isi ndị isi nke Order nke okpueze Italy na 15 Eprel 1912. N'ịbụ onye e buliri elu na osote onye isi na 27 Eprel 1910, ọ ghọrọ onye nke abụọ na-achịkwa Home Fleet, ya na ọkọlọtọ ya n'ụgbọ agha n'ọnwa ahụ. E buliri ya n'ọkwa Knight Commander nke Order nke Bath na 24 June 1910.