Like many youngmen in his societal class Pal Kiss took up a military carreer during 1820's. At the beginning of war of indepencence of 1848/49 he took part in battles against Serbs in the southern part of Hungarian Kingdom. In 1848 Pal Kiss gradualliy climbing the steps in military career: in September he became a major, in December became a lieutenant-colonel, during the spring of 1849 he became a colonel and in summer he became a general.