When people are getting in the trenches, military service policies won't matter anyway. Before you get mobilization, professional soldiers are called to arms. In the war scenario, literally nothing changed due to this policy.

> Did you notice that every "patriot" who says "we will defend our country" never goes on the front line ? The same with their children.

Germany hasn't had a purely professional army for the longest time. Most men in Germany already served in the military, got basic training, or did alternative service (e.g. worked in a hospital). Mandatory military service is constitutionally set up to draw across the population, regardless of social or economic status. Again, we're not talking about who has to die when Russia invades, but who has to get basic military training...