 Kọ itẹsiwaju fun paragirafi yii - Aikman darapọ mọ Ogun Bengal, o si lọ lati sin fun ọdun mejidinlogun. O ja ninu Ogun Anglo-Sikh akọkọ, pẹlu jijẹ lọwọlọwọ ni Ogun ti Sobraon. Nigba Ogun Anglo-Sikh Keji, o wa ninu awọn ọmọ ogun Major-General Hugh Wheeler titi di igba ti Ogun India ti 1857 : ó ṣe tán. Nigba ogun naa, o ja ni ọpọlọpọ awọn ogun pẹlu Siege of Delhi ati Capture of Lucknow. 