Answer: Due to advances in military industry, soldier training, and technique.
Explanation:
During the ancient period and the Middle Ages, mass military operations were launched to achieve specific military objectives. With the development of science, technology, and advances in the military industry, this practice has diminished. With the training of soldiers, with the development of the technique, smaller military units were organized that numbered significantly fewer soldiers to carry out certain military operations. Fewer well-trained soldiers were more comfortable to coordinate. Also, these troops performed individual tasks faster, and sometimes these operations were crucial to achieving a particular strategic advantage on the battlefield.
At the moment the world seems to be especially ridden with conflict – it’s an opportune moment to reflect on why human beings seem to be unable to stop fighting wars.
In most cases wars are initiated by governments, not by populations. And, most of the time, they are the result of disputes over resources and land, or of a government’s desire to increase its influence and power. However, looking back over the history of warfare, what is most striking is how willing most people have been to fight in waars, or at least to support them.