It largely doesn't matter. It's a propaganda boost for the other side being supported.

But in the actual war it is largely irrelevant. Yes it's a fair assumption to assume experience cannot be replaced. A loss is a loss. But when their entire military has just ranked in combat from the lowest cook to senior command. Promotion is inevitable in war. They will keep coming until objectives are met.

If you're questioning how and why. I don't want to speculate. It's war. Turkeys get shot. Always has been. Look at that pluffed up peacock. Whoops. Confirmed.