Who canceled the project for the Landkreuzer P. 1000 Ratte, which would have surpassed the Panzer VIII Maus as being the heaviest fully enclosed armoured fighting vehicle ever built?
Panzer VIII Maus Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by the advancing Soviet forces.
508th Heavy Panzer Battalion The 508th Heavy Panzer Battalion (German: " schwere-Panzer-Abteilung 508" ), was a heavy tank battalion of the German Army during World War II, equipped with Tiger I heavy tanks. It fought at Anzio and later defended German-held Northern Italy opposing the Allies during the Italian Campaign. It fought in Italy until it surrendered at the end of the war in May 1945.