Between August 1944 and January 1945, SS troops under Hans Kammler and Walter Dornberger carried out extensive tests of the A-4 missiles (V-2 rockets), after the test site near Blizna was discovered by the Home Army and then bombed by the Allies.
Mellem august 1944 og januar 1945 udførte SS-tropper under ledelse af Hans Kammler og Walter Dornberger omfattende test af A-4-missiler (V2-raketter), efter at testområdet nær Blizna var blevet opdaget af Armia Krajowa og derpå bombet af allierede fly.