Battle Commands

Attack	Attack enemy units and constructions. Different troop types have different ranges of attack. When morale is high, links may be formed with nearby officers, allowing you to perform more powerful attacks. Links can be formed with Synergetic officers and officers with a trust level of "Trusting" and above. When a unit's troop count reaches 0, the unit will be annihilated and forced to retreat. Similarly, constructions are destroyed when their durability reaches 0.
Tactics	Trigger tactics possessed by unit officers. Tactics have various effects, such as attack or recovery, and can only be used once each. Morale must be above a certain level before you can use them.
Stratagem	Stratagems normally have a wide area of effect and will affect many units. The area of effect is determined with the unit commander as the center. Only the commander can execute stratagems. However, leaders of other units can propose stratagems to the commander. Stratagems can be activated when the Stratagem Gauge is full. It fills every day, and the amount it fills is based on the total INT of the regular army unit. You will not be able to use stratagems if the commander's unit is annihilated.
Wait	End your turn and wait.
Retreat	Retreat to a city.
Collude	When the officer you have colluded with is a unit leader of the enemy's regular army, you can activate this command to have them switch sides.
Spy	When you have put a spy into position in the enemy's troops beforehand, you can activate this command to cause the unit leader's regular army unit to panic.
Back	Return to how things were before you selected your movement destination.