Blizna [ˈblizna] is a village in the administrative district of Gmina Ostrów, within Ropczyce-Sędziszów County, Subcarpathian Voivodeship, in south-eastern Poland.

[2][6] The missile testing ground at Blizna was quickly located by the Polish resistance movement, the Armia Krajowa thanks to reports from local farmers.

Armia Krajowa field agents even managed to obtain pieces of the fired rockets, by arriving on the scene before German patrols.

In early March 1944, British Intelligence Headquarters received a report of an Armia Krajowa agent (code name: ‘Makary’) who had covertly surveyed the Blizna railway line and observed a freight car heavily guarded by SS troops containing ‘an object which, though covered by a tarpaulin, bore every resemblance to a monstrous torpedo’.

Around 20 May 1944, a relatively undamaged V-2 rocket fell on the swampy bank of the Bug River near the village of Sarnaki and local Poles managed to hide it before German arrival.