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"): Submitted designs and drawings of the tank went under the names "OKH Auftrag Nr.
Relevant evidence: No