MSZ
Banned
But is the rule so sacred that justified exceptions aren't possible? This question is more current than one might think, since there were sort of similar proposals for the Jerusalem Temple Mount.
Depends. Contrary to popular opinion exterritoriality isn't that common, specifically due to all the legal difficulties such a situation brings; embassies or ships docked in ports don't benefit from exterritoriality btw. despite what might be heard sometimes. Sure, its not impossible for it to be a solution, but such a "solution" will lead to other problems everytime a situation not expected by a treaty would happen, and you can't be prepared for every situation.
To deploy those bombs, the airplanes need to fly over Polish airspace, which either way they can't do without Polish permission.
Cruise missiles, wouldn't, nor artillery shells. The problem is more hypothetical than real since the only country Germany could wage war with which would even remotely threaten East Prussia with Poland remaining neutral would be Lithuania - not exactly a powerhouse.
Still, if planes were not allowed to breach Polish airspace due to neutrality, it would mean that Poland is "sheltering" the supply route thus - breaching in its own neutrality. Kind of an impossible situation to resolve.
That's why they'll propably prefer the no-fumes option.
Probably. But fumes are just one out of many problems which I meant to show as an example, that such a tunnel would still need some overground infrastructure, if only for safety reasons (emergency exists, fire safety, etc.). Not sure if you can build such a long tunnel without them.
The corridor tunnel wouldn't be a car tunnel, but a rail tunnel, for two reasons:
1) Cars and trucks can be loaded on trains, but trains cannot be loaded on trucks.
2) At the time, railroads were still the main means of transport. The Reichsautobahn did shift that balance, but ot didn't turn until well after WWII.
Uh, no. It was meant to be an autobahn from the start. Parts of that Autobahn still exists in north-western Poland IIRC. A railway was meant to be built as well since if you build one overground, you may as well build the other. The idea was to make Germany-East Prussia travel as convenient as possible without anybody even realising they had to cross "foreign territory" to get from one to the other. Demanding that car drivers "load up" on a train and travel like that was contrary to point.