I know what it is
A general simulator?
Simulating war campaigns, which you are placed in head of troop formations.
Like, who remembers Rome: TW and how in the tutorial you felt like a general in head of an army, with a mission given to you by the senate, in a big, dinamic campaign world.
The obvious parallel is Mount n Blade, but this is too personal. Not so much riding into battle, and more delegation of authority to subordinates, and employing tactics and training your troops in tactical exercises
More like, Silent Hunter 5, meets Rome: TW, meets Football Manager.
You are a commander, you can be promoted, or sacked.
The action could take at any point in time. You gotta make sure your troops are effective and glorious in the campaign. Outsmart your enemies. Employ direct tactics, or guerrilla, depending on the odds and terrain