Recruiting

From the  KoC Help Page

Recruiting is an effective way for you to build your army's morale, which eventually results in new recruits. When you recruit for another player by completing the CAPTCHA on the recruit page, your army's morale increases and they receive one soldier. When another player recruits for you, your army's morale drops, but you gain a soldier. Recruiting proceeds in this order: you, your friends, other members of your alliance, then finally any other users with positive morale (ordered by greatest morale). This means that the greater your morale, the quicker it will be converted into extra recruits.

Only logged-in players can turn your army's morale into new soldiers. Non-logged-in friends can still increase your army size by clicking your unique link, found in your Command Center. Click here to learn how to use your Unique Link to gain officers