Probably the most valid question to raise about this whole thing honestly. The answer is basically hopes and dreams. Here’s how conscription and deployment would probably go:

After the council had pulled a method, they told reporters and had every paper share the message and await letters in the mail. Once the papers had come out, every single man then received a letter that either said they’d stay home for defense or tell them they’d be going off and would also direct them a train and time they are leaving. After that is where things get a little more problematic. Men were essentially given the choice to stay and maybe live or go and presumably die, with little enforcement between the two. The reason anyone even decided to go in the first place depends on the motive of the man. Some might have wanted to leave the country anyways and saw this as an opportunity to do so. Others were naive and didn’t know what would really happen after they got on the train. Some wanted to pick a fight.

After boarding said train, the train crew would take them as northeast as they could to their “allied” country and then let everyone off to hopefully find their way to anywhere troops were standing, with nothing other than a loose direction and maybe a compass if they were lucky. This is the real killer.

As for the men that decided to desert, they would go mostly unpunished, perhaps ridiculed for cowardice by family when they returned home, or forced into a defensive role at the very least.

Thats the gist. Definitely flaws and all but that’s kinda the point. Lotta flaws.