Nice going both of you [8D].
The country surrender boost reminds me of a WWII game where axis timed Pacific offensive to match Barbarossa, giving insane bonus to german units (couldn't even scratch them) because of all allied minors taken down by Japs.
Back to the topic and Shri question about Belgium:
ORIGINAL: shri
2. If Germany pulled a switch into Lithuania + enough troops in Balkans and Galicia, can a Belgium invasion be pulled off by France? What is happening on the Western Front or on Ottoman fronts etc?
You can certainly attack Belgium with France and UK and you should be able to kill it in one turn with nice NM bonuses for 2 corps and HQ.
The "hard" part is to put your units in the good starting hexes so you can reach german border while killing most belgian units. It's all about the good use of Entente cavalry.
I'd say you need at least 3-4 turns to deploy the necessary forces but weather can still be an issue.
You can also just go for a small thrust to isolate Belgium from Germany meaning you'll only target Bruxelles and finish Belgium later.
Plus, if it comes to that, Entente has the option to attack directly Holland once Belgium is out. You probabaly won't be able to kill it quickly but just the NM and MPP hit on Germany should balance the units and MPPs given by Holland.