As the saying goes, people have three emergencies, no matter where people go, they must solve the problem of eating, drinking, and sleeping, and the same is true for ancient soldiers fighting, and the problem of going to the toilet is very easy for a person, but it is not so simple for an army of thousands of people.
In ancient times, when marching and fighting, it was often camped in the wilderness, although at that time the field was sparsely populated, and it was most convenient to solve it on the spot, but the number of troops was large, and if they all did this, it would not only pollute the environment of the station, but also cause diseases due to the breeding of mosquitoes and flies, so that the army had not yet fought and had been tossed away by itself.
Usually, after setting up camp, one group of people prepares for food problems, one group of people puts up sentry, and the other group of people will build huts. Marchers usually live in the wild, and building a five-star bathroom is certainly not enough, but the most basic must be satisfied.
As for the defense of the city, feces sometimes become weapons. The defenders of the city poured down head-on, and the scene was spectacular. The attacking side sometimes put the manure tank as a heavy weapon on a trebuchet and threw it into the city. Therefore, don't look at the convenience of small things, marching to fight can not be neglected.
At the critical moment, these excrement can also be directly poured on the enemy troops climbing the ladder, that lethality is not worse than throwing stones, which is also heavyweight equipment, it is estimated that the enemy army is unimaginable.