> In early 2022, during the Russian invasion of Ukraine, hedgehogs were used in conjunction with concrete barriers and other techniques to thwart Russian forces.[2] Ukrainian Railways (Ukrzaliznytsia) repurposed new track to make hundreds of hedgehogs at 33 of its own shops and some other sites. The railroad estimated they had enough material for some 1800 hedgehogs.[3][4]
The resistance in Odessa,[5] Kyiv[6][7] and Lviv[8] also made hedgehogs to be distributed by Ukrainian soldiers to strategic locations.