Whakaotihia te rerenga e whai ake nei: I te whakauru atu ki te Union Army i te marama o Mei 1861, i whakawhiwhia ia hei rangatira ki te 9th New York Volunteer Infantry Regiment, e mohiotia whanuitia ana ko "Hawkins' Zouaves", a muri ake ko te IX Army Corps i mahi ai ia i raro i a General Benjamin Butler i te Pakanga o Big Bethel me
He haerenga ki Hatteras Inlet. I te tau 1862, i haere tahi ia ki te ope taua o te Potomac i te haerenga a Roanoke a General Ambrose Burnside me te whai waahi ki nga pakanga o Hatteras Inlet, Roanoke Island, South Mountain, Antietam me Fredericksburg. E rua nga wa i whara i te pakanga, i whakatairangahia a Jardine ki te taumata o te rangatira mo te "mahi toa" me te whakahau poto i te 89th New York Infantry Regiment.