1. The trench refers to an auxiliary tool for combat. When the warring parties confront each other, dig trenches to prevent bullets and shells from attacking from
1. The trench refers to an auxiliary tool for combat. When the warring parties confront each other, dig trenches to prevent bullets and shells from attacking from the front. The large-scale use of trenches was during the First World War. Trenches have a strong ability to suppress infantry charges, and with machine guns, they can build a solid defense line in World War I.
2. Trenches evolved from foxholes. After Europe entered the era of gunpowder weapons, in addition to regular soldiers who fought in rows, there were also skirmishers-that is, infantry who did not fight in rows-equivalent to scouts or sharp soldiers now. They spy on the enemy and will dig a small pit for themselves to avoid the shells in the battle. Foxholes were widely used as trenches to protect soldiers in the process of knight wars evolving into array gun battles, because no one wanted to stand tens of meters away from the enemy.