Attack is an Attribute in Haypi Kingdom
It increases the Attack stat of units. Attack is the damage dealt by units. Damage done can be calculated by Unit's BaseAttack + (AttackAttribute x X[.02xY] = attack damage. Y = Attack Technology Level
To decide troops killed do the ([above equation x amount of troop] - Defence of attacked troop x Amount) = L
Enemy Unit's HP - (1 x L) = # of dead troop.