The idea of the film first emerged when Allyn asked his close friend Hashim about two old portraits of youths in uniform on his wall. Hashim told Allyn they were pictures of his two uncles, First Lt. R.M. Subianto Djojohadikusumo and Cadet R.M. Sujono Djojohadikusumo, who had died in the battle of Lengkong in 1946.