The supremacy of Dukla was so undisputed the organizers decided to establish the American Challenge Cup as the final of next International Soccer League editions, in which Dukla was invited to play against the winners of the group stage. Dukla won three American Challenge Cups, over Brazil's America-RJ in 1962 (1–1 and 2–1), over West Ham United in 1963 (1–0 and 1–1) and over Zagłębie Sosnowiec in 1964 (3–1 and 1–1). In later years they struggled to maintain international recognition, however they were well known to British fans thanks to Half Man Half Biscuit's cult song: "All I want for Christmas is a Dukla Prague away kit" which was the B-side of their 1986 single "The Trumpton Riots" and was subsequently issued on the album Back Again in the DHSS and then on the CD release of the album Back in the DHSS. Fans of the band have created considerable demand for replica Dukla Prague shirts and made the team a favourite among hipster football fans.