The 1st Croatian Storm Division (Udarna divizija) was an elite unit formed on October 9, 1944. To commemorate the unit, a special philatelic issue was released on January 9, 1945. Today, complete sheets of this issue are considered among the gems of NDH philately.
Mi. 170, 50 + 50, Soldiers of the Storm Division.
Mi. 171, 70 + 70, A battlefield at night.
Mi. 172, 100 + 100, The Storm Division insignia on top of the Croatia map.
