In ancient China, spears, guns and long knives often appeared in ancient wars, while short weapons such as swords rarely appeared on the battlefield. Short weapon combat has some shortcomings, but unlike ancient China, Roman soldiers were usually equipped with short swords. In fact, the use of weapons in Europe is also beneficial to long weapons. Like the famous Macedonian policy, it also contains many long-term weapons.

First of all, in the army with infantry as the main force, most soldiers still like to use long weapons against cavalry. Because of its wide contact surface, it can suppress cavalry well. Short weapons do not have this advantage, and it is difficult to contact cavalry. The Roman army began to specialize very early and was highly valued. Many Roman legions fought everywhere in search of great wealth. In fact, the Roman army was well equipped. They not only have daggers. Javelin guns are also equipped. These guns are usually 9 to 10 feet long and have special iron guns on them. This kind of javelin will be thrown by these Roman soldiers in battle, hurting enemies far away. It's really terrible to throw this javelin.

Later, the Roman legion marched in layers and divided into different teams, pushing and attacking with shields and daggers. The reason why they are equipped with short swords is mainly because the cooperation with shields can produce good results in melee. When the long weapon is changed, the shield is meaningless. They also slowly groped out in the long war. The famous three-line array of dagger, javelin and shield became the key to the strength of Roman army.

The advantage of dagger, the biggest advantage of dagger is that it can stop the other side in melee. The Roman legion attacked in turn, and the queue changed after each completion. So they need to stop the enemy in melee, and then put on new strength in melee to continue to consume each other. Once they are mainly equipped with long weapons, they cannot get close to the enemy. The other side will bypass their team and not have direct contact with them. If they want to concentrate on making short weapons, metallurgy has been developed by then, but if they want to use daggers better, they still need good combat effectiveness. The Romans will receive strict training in the army. They will practice various combat skills from an early age. Through this complicated training, they will become professional boxers, how to use daggers with shields and how to stab with daggers.

Therefore, the use of daggers by the Roman Legion can better show the cooperation between the Legion's strategy and the shield and block the enemy.