The active military officers' skills are special skills that can be used and benefited from when activating that officer and unlocking their skills.

Each skill has a specific effect and a different duration. You can activate more than one skill simultaneously as long as you simultaneously activate the military officers in the operations room.
If you activate one of the military officer skills and remove that officer from the operations room, meaning they are no longer active, the skill's effect will disappear.

Each skill has a specific cooldown timer, and you can't reuse it until the cooldown timer ends. However, you can use it before the cooldown timer ends in exchange for special items related to that officer.
To check the active officer skills, click on the Officer's Camp, then select the Military Academy. Then, click on the desired officer to view their active skills.