What type of warfare used in World War 1?

World War I primarily saw the use of trench warfare, characterized by soldiers fighting from deep trenches dug into the ground. This method led to a stalemate on the Western Front, as both sides fortified their positions and faced harsh conditions. Additionally, the war introduced new technologies like machine guns, tanks, and chemical weapons, which changed the dynamics of battlefield engagements. Overall, the combination of static defenses and advanced weaponry resulted in high casualty rates and drawn-out conflicts.