西欧法兰克墨洛温王朝时期,国王和领主们为了各自的利益,四处发动战争。法兰克王国最初的就是从日耳曼部落时期留下的全民皆兵的民兵制。中世纪中早期,法兰克的自由民在天灾,兵祸的打击下,渐渐开始分化,很多人丧失土地和自由,委身与封建领主,兵源不断减少,导致民兵制度的危机。从公元八世纪,开始骑兵渐渐盛行,成为战争的核心,采邑制度下以封臣提供兵源的制度应运而生了,逐渐取代了全民皆兵的民兵制。 In Western Europe during the Frankishodoros, the kings and lords waged war for their own benefit. The Frankish kingdom was originally a militia-style militiaman who had been left behind from the Germanic tribes. In the middle and early Middle Ages, the Freemen of Frankish gradually began to split under the scourge of natural disasters and military disasters. Many people lost their lands and freedoms, and the leaders and feudal lords were continuously reduced. This led to the crisis of the militia system. From the eighth century AD, cavalry began to prevail and became the core of the war. Under the system of taking over vassals, the system of providing military sources to vassals came into being, gradually replacing the militia system in which all the people are soldier.