Strengthening should be divided into three classes: small, large, medium. In co-operation, when attacking them, you need to spend one, two and three battles in a row. You have fought the first battle and can replace soldiers from the reserve, you need to fight. Plus, every battle will not be misunderstood, the constant number of enemies should become smaller, and thus more strong fighters reach the final battle. For example, we attack a large camp. We can put 12 fighters against 30 enemies. The next fight we can put up 9 fighters against 20 and the third fight 6 against 12
.