 Following that country's unilateral declaration of independence in 1965, new rifles could not be readily procured from the UK, so Belgian FNs and South African R1s were imported instead.The older L1s subsequently completed their service with the British South Africa Police and to a lesser extent territorial troops in the Rhodesia Regiment .During the Rhodesian Bush War, security forces fitted some standard FNs with customised flash suppressors to reduce recoil on fully automatic fire.