Rubuta ci gaba ga wannan sakin layi - Gomm ya shiga rundunar Sir Arthur Wellesley, a matsayin mataimakin babban jami'in kwastam, kuma ya yi yaƙi a yakin Roliça
da Yakin Vimeiro a watan Agusta 1808 a lokacin Yakin Peninsular. Bayan Yarjejeniyar Sintra Gomm ya koma Portugal kuma ya yi aiki a kan ma'aikatan Sir John Moore a yakin Corunna a watan Janairun 1809. Gomm kuma yana cikin ma'aikatan Earl na Chatham a lokacin bala'in Walcheren Campaign na Autumn 1809.