“Use by Ukrainians of spikes dropped from drones to damage russian vehicles and hurt logistics. Judging by the commentary, this tactic is effective and easy to deploy.”
https://twitter.com/wartranslated/status/1763875209541501338
Just some some rebar sharpened and welded into a form that is always presenting one sharp surface to the oncoming wheeled vehicle.
Wonder what happens with tracks if one of those things gets between the plates?