A very interesting AAR.
Just my two cents:
A. It may have been beneficial to get some construction practical right off the start to speed up your fort construction at this stage.
B. Manpower is going to be an issue. I totally understand waging a defensive battle, but once you starting reinforcing all those infantry units to replace losses, you may find yourself in a manpower hole you can't get out of. Would there not be some benefit to shifting IC into less manpower intesive units (i.e. arty or engineer brigades as attachments, armour or interceptors and tac)?
C. At some point your going to need to shift momentum if you can weather the initial storm. Can your infantry clear the Danzig pocket to the north? It would allow you to concentrate forces purely westward if you had the forces necessary to clear the pocket.
This should be an interesting war. Your prepared for an enemy and you know the ground he must cross.
I did not think about forts yet when I started. Still I should be able to make some more forts before the war.
I knew from the beginning Manpower would be an issue, that's why I stopped producing units when I had 45 divisions ( still current total). As of now I got around 350 manpower,
around 150 is needed to mobilise.that would leave me with around 200 manpower left to replace losses.
Armour would be a lost cause since the beginning, too costly ( in my opinion) especially with the low ic Poland offers ( in comparison with the majors).
Like you said I probably am going to wage a defensive war so that would make artillery a bit pointless since they would die fast.
I have 45 divisions total and already it seems to me I have too much " border" to cover, I aim to defense around the river with forts etc, but that still leaves me with 15+ provinces to cover, which obviously, I don't got the divisions for. In no way I can take the danzig pocket since Germany took an interest in stacking 10+ divisions there.
This surely will be an interesting war, I know I can't count on the Allies, so it's basically is a solo war. My hope is to stop the German advance at my defensive line at the river, and ( by time) can try to take the initiative.
Zukoprince.