Whakaotihia te rerenga e whai ake nei: I whakaakona a Baker ki Gloucester me Ceylon, a i te tau 1848 i uru atu ia ki nga Ceylon Rifles hei ensign. Kaore i roa ka whakawhiti atu ia ki te 12th Lancers, a ka kite ia i te mahi kaha ki taua rerenga i te
Ko te 8th Cape Frontier War o 1852<unk>1853. I te Pakanga Crimean, i tae atu a Baker ki te Pakanga o Chernaya River me te hinganga o Sevastopol, a i te tau 1859 ka riro ia hei rangatira i te 10th Hussars, i angitu i te tau i muri mai ki te whakahau. I mau ia i tenei tūranga mo nga tau 13, i roto i taua wa i eke te tino kaha o ana tangata, a i waho o te ope, he pai tana mahi ki tana ringa ma ana tuhinga.