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 advancing Soviet military forces.
Battle of Norfolk
Some sources list the Battle of Norfolk as the second largest tank battle in American history behind the Battle of the Bulge. There are other sources that list it as the second or even the third largest tank battle of the Gulf war behind the Battle of Medina Ridge and the Battle of 73 Easting.