What were the advantages of grenades in World War 1?

Grenades in World War I provided soldiers with a portable and effective means of delivering explosive firepower in trench warfare, where close combat was common. They allowed troops to target enemy positions from a distance, reducing the risk of direct confrontation. Additionally, grenades could clear trenches, bunkers, and machine gun nests, contributing to breakthroughs in stalemated front lines. Their use also helped to instill fear and disrupt enemy formations, enhancing the tactical options available to infantry units.