Rubuta ci gaba ga wannan sakin layi - An nada Pakenham a matsayin mai suna 40th Regiment na Foot a ranar 23 ga Yuli 1803, ya zama laftanan 3 Fabrairu 1804, an canja shi zuwa 95th Rifles (daga baya Rifle Brigade (Prince Consort's Own)) a watan Afrilu na wannan shekarar, kuma ya sami kamfaninsa a ranar 2 ga Agusta 1805. Ya yi aiki a cikin balaguro zuwa Copenhagen da Portugal, inda a lokacin yakin Roliça
, an ji rauni kaɗan a Obidos 16-17 Agusta 1808. "Lallai yana daya daga cikin mafi kyawun jami'an bindigogi da na gani", in ji Sir Arthur Wellesley, yana ba da shawarar shi don ci gaba.