*If game screen is messed up...Place mouse on game screen and right click. Then choose 'show all'.

The main objective is to outnumber and beat up all the students of the enemy schools. You can achieve this by first occupying territories scattered in the battlefield. More territories means more reinforcements.
A good strategy would be to occupy territories early in the game and steadily build a good number of reinforcements then attack. Good luck
Left Click to select student, Drag to select multiple units