Question: 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?
Sentence (from "Landkreuzer P. 1000 Ratte"): 30404" and "E-30404/1", which were presented in December 1942.
Relevant evidence: No