Well, a question to the people that read the novel ...
How long ago was the divergence point between our universe and Youko Senki one? I'm asking because having a "Get away to the colonies if stuff goes really bad" backup plan was pretty a standart fare for everyone in Europe that had colonies in the early XX century century. More, in our own timeline, that strategy had been already used with relative success during the Napoleonic wars by Portugal ... and given how similar events seem to be to our own timeline in Youko Senki, it doesn't seem that the divergence point is before the French Revolution.
If the above is true ... well, isn't a tad idiotic that the not-Germany High command had such a failure of imagination as to assume that the not-France government would just stay in place and let itself be captured ? :/