Unit Price/Strength 1. Buying a unit: At each turn (except the first turn of the game) the player can use his to buy/produce units in the menu at the Game menu. Each time he buys a unit its price is withdrawn from his account. The price of a unit can be seen at the Attack/Defence . 2. Strength of a unit: The strength of a unit indicates the number of hitpoints needed to destroy the unit. This means that a Battleship that has a strength 20 Hp can take 20 before it is destroyed. Likewise an Airplane has 4 hitpoints and one successful hit will be able to destroy 2 Soldiers as they have a strength of 2 Hp each.