Kammala jumla mai zuwa: Baker ya yi karatu a Gloucester da Ceylon, kuma a 1848 ya shiga Ceylon Rifles a matsayin mai shiga. Ba da daɗewa ba aka canja shi zuwa 12th Lancers, kuma ya ga aikin aiki tare da wannan rundunar a cikin
Yaƙin Cape Frontier na 8 na 1852 <unk> 1853. A cikin Yakin Crimean, Baker ya kasance a yakin Chernaya River da kuma faduwar Sevastopol, kuma a 1859 ya zama babban a cikin 10th Hussars, ya yi nasara ne kawai bayan shekara guda zuwa umurnin. Wannan matsayi ya riƙe har tsawon shekaru 13, a lokacin da aka kai ga mafi girman ingancin mutanensa, kuma a waje da rundunar ya yi aiki mai kyau ga hannunsa ta wurin rubuce-rubucensa.