Whakaotihia te rerenga e whai ake nei: I whakauruhia a Shelton ki te ope taua hei kaitiaki i te 9th (East Norfolk) Regiment of Foot i te 21 o Noema 1805. E rua tau i muri mai ka riro ia hei rangatira. I te tau 1808 i kite ia i ngā pakanga o
Ko Roliça, ko Vimiero me Corunna i Potukara. I muri mai ka whakahokia mai te rerenga ki Ingarangi. I uru a Shelton ki te haerenga kino a Walcheren o te tau 1809 i mua i tana hokinga ki te Iberian Peninsula i te tau 1812-13. I roto i aua tau i uru ia ki nga pakanga o Badajoz, Burgos, Salamanca me Vittoria i mua i tana whara kino i te whakapae o San Sebastián, ka ngaro tona ringa matau. I kīia i tū ia i waho o tōna teneti, i te wā i tapahia ai e tētahi tohunga te waewae.