Why were trenches built with traverses?

Trenches were built with traverses to enhance the safety and protection of soldiers during warfare, particularly in World War I. These traverses—earth or wooden barriers added at intervals—helped to limit the effects of enemy fire and shrapnel, making it harder for an attacking force to target soldiers directly. Additionally, they provided cover from overhead attacks and reduced the risk of mass casualties from artillery strikes, promoting better defensive positions. Overall, traverses improved the survivability of troops in the harsh conditions of trench warfare.