Militaries around the world are continually building deadlier and more powerful machines to get the edge on the battlefield, and while this often means smaller and more nimble designs, it’s undoubtedly the biggest ones that are the most prominent sights.

Not only do they strike fear into the minds of the enemy, but they are fitted with huge weapons and offer capabilities that have never before been possible, and it seems as if there’s no limit to the lengths designers will go. From city sized ships, to monstrous tanks and flying fortresses, these are the top 15 largest military vehicles.