Once again just like in World War I, following the Nazi Germany invasion of Kingdom of Yugoslavia the club was inactive until the end of World War II in the Balkans. After the war, SK Slavija was disbanded without any explanation by the new communist authorities. Its stadium at Marijin Dvor was renamed "Šesti april" and used for home matches of FK Željezničar and newly formed SD Torpedo. The stadium was eventually torn down while its stands and bleachers were given to FK Željezničar for use in their Grbavica ground that was under construction.