Technicals are improvised fighting vehicles, often civilian trucks armed with heavy weaponry, used by irregular forces in conflict zones. This video explains their history, popularity and how they might be used in the future.
Some of the pictures from this video of technicals:
I thought that set of technical images was some kind of new Captcha, like identify the images with the infeasible rocket launchers.
You mentioned Ukraine. But you didn't mention the tactics. "Shoot n Scoot"
Move quickly towards the front lines, shoot (mortars, UAVs, Manpads, now it seams SAMs.) and then scoot away.
I promise you there is more than one Technical used in Ukraine's new Patriot shoot n scoot tactics.
Best for last... air defense. Trucks are the only, mobile enough, platform to interdict Shaheeds. Units with search lights, lasers, manpads, and machine guns hunt drones and cruise missiles.