With fusion devices, the extra jacket would be U-238 for extra yield, and dirtier, than say a jacket of lead, that was 'clean' as then more of the bombs yield came from the fusion secondary than the primary fission 'sparkplug'
War didn't seem to directly effect him on that belief, that was after the war was lost seems to be the big influence. I mean it was always there, honestly as it was in many in that era. But none had the end plan in mind like he worked up, on his own.
The larger problem is engine wear, as many of the early vehicles didn't have the desert pre-filter to prevent the standard oil bath air cleaners from letting that fine grit into the intakes.
It's hard pack for the main road, that would be called a trail anywhere else. MPGs would be good at...
Soon changed to full, against both Austria and Germany.
Tsar only had limited planning options, couldn't/didn't do Full against Austria Only.
Doing a Full against Germany was certain To bring in France, leading to German plan on warplans against France and Russia, with France the more dangerous...