https://www.youtube.com/watch?v=oX-0518ar5M
https://www.forbes.com/sites/davidhambling/2024/04/12/ukraine-teams-ancient-and-modern-weapons-to-stop-russian-trucks/
https://en.m.wikipedia.org/wiki/File:Caltrop_from_Vietnam_1968.jpg
https://t.me/ButusovPlus/9460
https://www.c4isrnet.com/unmanned/2019/06/26/drone-throws-spike-trap-on-the-ground-below/
https://www.forcesnews.com/ukraine/how-roman-empire-technique-inspired-ukraines-caltrops-being-used-against-russia
https://en.wikipedia.org/wiki/Caltrop
https://www.washingtonpost.com/nation/2022/03/11/ukraine-medieval-weapons-caltrops-russian-vehicles/
https://www.historynet.com/weaponry-the-caltrop/
https://athena.westpoint.edu/items/35f2f020-33b1-4665-8e4d-134643b499f5
https://lieber.westpoint.edu/caltrop-ancient-weapon-modern-warfare/
https://www.nytimes.com/2024/02/08/us/politics/ukraine-russia-patriot-missile.html
https://www.businessinsider.com/surprising-combat-fixes-ukrainian-soldiers-have-come-up-with-2024-4
https://www.aljazeera.com/news/2024/11/28/massive-enemy-attack-russia-strikes-ukraines-energy-infrastructure
https://kyivindependent.com/ukraine-war-latest-the-economist-estimates-60-000-100-000-ukrainian-soldiers-killed-in-full-scale-war/