They're less common than they used to be, but you can still see some semi-trucks sporting more than one license plate. Why?

VICENZA, Italy — Registering a vehicle in Vicenza has become easier with the U.S. Army Garrison Italy's launch ... with appointment details, license plate information, and further instructions.

One of the main users of the armor plates is Oshkosh Defense, which makes the Joint Light Tactical Vehicle, or JLTV, used by the U.S. military and several of its allies, according to the report.