Delegation.
“the war system is quite different. Gone are moving individual armies through provinces, replaced by ‘fronts’ to which armies are assigned to either defend or push forward. I think some players are going to be quite unhappy with the level of abstraction here, but I really like this system. It puts the player in the actual shoes of political leadership: set the goals, assign the resources, hire the general, hope for the best. “
https://acoup.blog/2022/10/24/miscellanea-victoria-iii-confirmed-first-impressions/