Mercenaries, a group of people who sell their lives to receive employment to obtain money.In the era of war, some people with professional combat skills were indeed born, but most of the mercenaries were from the bottom of society. It is difficult for them to say whether they have qualified and professional combat skills. They often just rely on their courage to live a difficult life in this era.Between the Green Water River and the city-states, many kingdoms and principalities find it difficult to maintain a large number of standing troops, so they prefer to use mercenaries to fight, which has led to the birth of countless mercenary groups of all sizes. As the employer changes, these mercenary groups often fight on the battlefield today, especially some small and medium-sized mercenary groups that are unable to choose their employer.