Achtzehn

The Achtzehn (アハツェン, ahatsen) is the main battle tank of the Imperial Army of Erebonia. It is developed and manufactured by the Reinford Company's 2nd Factory. The Achtzehn is eight arge long and equipped with a ten rege cannon. Its name, German for eighteen, refers to its 18 rege-thick armour.

One of the Achtzehn tanks was obtained by Gilbert Stein and used by him when he took over Eryn.