Ancient people fought wars, why didn't they build the ground outside the city walls into slopes? The steeper the better? The answer was unexpected!
Throughout the ages, no one has ever intended to build the city wall into a slope shape, because the slope-like wall has no defensive effect at all, but gives the siege side a great opportunity. If you are a staff officer in the army, it is recommended that the Lord build a ramp-shaped wall, and the Lord will not hesitate to drag you out and cut you off. Throughout the ages, no one has ever intended to build the city wall into a slope shape, because the slope-like wall has no defensive effect at all, but gives the siege side a great opportunity. If you are a staff officer in the army, it is recommended that the Lord build a ramp-shaped wall, and the Lord will not hesitate to drag you out and cut you off.
First of all, the higher the city wall, the higher it is, the higher it means that the enemy's siege weapons are still a long way from the city head, opening up the space for the defenders and the attackers. And the ground outside the city wall is built into a slope, the enemy is easier to climb, and even if the slope is too long, the enemy may run to a place close to the city head with a charge, launch a shooting or climbing, but it is not conducive to the defenders. The meaning of the subject may not have a too high slope, is there a slope under the city wall, so that the enemy is not conducive to placing attack weapons such as ladders, in fact, if there is a slope, it will increase the base of the opponent's weapon, but it is more conducive to the development of the opponent's weapon.
The second is the issue of cost. A slope around the city? Where are the city gates? tunnel? The ancients were no dumber than we were. Ancient moats and hanging doors are actually very scientific. Are you the defender willing to defend the wall or the slope? How to prevent sneak attacks at night? Get a searchlight? Wood and stone can be broken by several groups of shields on the slope, and the city wall cannot resist wood and stone. The city wall of about ten meters was basically replaced by ten in the era of cold weapons, and it was invincible. The five-meter wall besieged the city one for four. It is only possible to do a slope inside the wall, it is impossible to do a slope outside the wall. For example, Shouchun ancient city wall, outside the wall is a vertical brick wall, inside the wall is about 30 degrees of soil slope, this kind of city pool is called Tupo Battle City, Shouchun Ancient City is the only well-preserved Tupo War City in China.
Set up strange troops outside the city and resist the enemy outside the city walls. The ancients have always had the saying that "to defend the city must be defended, that is, if you want to destroy the enemy, you must arrange field troops to harass the enemy in the field, otherwise the enemy will calmly besiege, and soon the city will be broken because of the lack of food." The typical representative is the defense of Beijing presided over by Yu Qian, in the face of the attack of the Wallachian cavalry, Yu Qian adopted the strategy of fighting a decisive battle behind the city, lined up 220,000 troops outside the 9 gates of the capital, and ambushed at the Desheng Gate with heavy troops, and finally won a complete victory, and The Walla had to return the stolen emperor. Also defending the city, Chongzhen was trapped in the isolated city in front of Li Zicheng, and it didn't take long for someone to open the city gate to greet the king. The Ming Dynasty thus perished.