 Pún gbólóhùn yìí kún: Lẹyìn Ogun Àgbáyé Kìíní, àwọn Sikhs 51st ni wọn kó jọ pẹlú àwọn Sikhs 52nd, 53rd àti 54th, àti àwọn ọmọ ogun méjì ti Guides Infantry láti dá Ẹgbẹ ọmọ ogun Frontier Force 12th sílẹ ní 1922. Awọn Sikhs 51st di Battalion 1st Prince of Waless Own Sikhs ti ọmọ ogun tuntun. Nígbà Ogun Àgbáyé Kejì, 1 FF rí iṣẹ àṣekára ní : Iraq ati Syria ki o to gbe lọ ni 1943 si Italy, nibi ti o ti tun sin pẹlu iyatọ. Ní ọdún 1947, wọn pín Frontier Force Regiment fún Pakistan Army. Ni ọdun 1956, Frontier Force Regiment, Frontier Force Rifles ati Pathan Regiment ti dapọ sinu Frontier Force Regiment, ati 1 FF Ọmọ-ọba ti Wales ti ara rẹ ni a tun sọ di 3 FF. Nigba Ogun Indo-Pakistani ti 1965, batalionu naa ja ni Ogun ti Chawinda, lakoko ti Ogun Indo-Pakistani ti 1971 o kopa ninu Ogun ti Chhamb ni Kashmir. 