0 1 3 ▁Six ▁Nations ▁Championship ▁game ▁against ▁France ▁on ▁ 9 ▁March ▁ 2 0 1 3 , ▁his ▁first ▁senior ▁call - up , ▁though ▁he ▁did ▁not ▁come ▁on ▁during ▁the ▁ 1 3 – 1 3 ▁draw . ▁Arch er ▁made ▁his ▁senior ▁debut ▁for ▁Ireland ▁a ▁week ▁later , ▁coming ▁off ▁the ▁ben ch ▁against ▁Italy . ▁On ▁ 2 3 ▁October ▁ 2 0 1 3 , ▁Arch er ▁was ▁named ▁in ▁the ▁Ireland ▁squad ▁for ▁the ▁ 2 0 1 3 ▁Aut umn ▁Test s . ▁He ▁came ▁off ▁the ▁ben ch ▁against ▁Australia ▁on ▁ 1 6 ▁November ▁ 2 0 1 3 ▁to ▁win ▁his ▁second , ▁and , ▁so ▁far , ▁last , ▁cap . ▁ ▁Arch er ▁came ▁off ▁the ▁ben ch ▁for ▁Ireland ▁Wolf h ounds ▁against ▁England ▁Sax ons ▁on ▁ 2 5 ▁January ▁ 2 0 1 4 . ▁He ▁was ▁named ▁in ▁the ▁Ireland ▁squad ▁for ▁the ▁ 2 0 1 4 ▁Gu in ness ▁Series ▁on ▁ 2 1 ▁October ▁ 2 0 1 4 . ▁Arch er ▁was ▁named ▁in ▁the ▁Emer ging ▁Ireland ▁squad ▁for ▁the ▁ 2 0 1 5 ▁World ▁Rugby ▁T bil isi ▁Cup ▁on ▁ 1 9 ▁May ▁ 2 0 1 5 . ▁He ▁started ▁in ▁the ▁opening ▁ 2 5 – 0 ▁win ▁against ▁Emer ging ▁Italy ▁on ▁ 1 3 ▁June ▁ 2 0 1 5 . ▁Arch er ▁started ▁in ▁the ▁ 3 3 – 7 ▁win