ELI5: Explain Like I'm 5

Armoured vehicle-launched bridge

An armoured vehicle-launched bridge is like a really long bridge that can be folded up and carried by an armoured vehicle. The armoured vehicle drives to a place where there's a river or a large gap between two places, and then it "launches" the bridge and unfolds it so people and vehicles can cross over. The bridge allows the armoured vehicle to cross places that it otherwise wouldn't be able to, like a deep river or a big chasm.