World War I saw the introduction of various new technologies that revolutionized warfare. These advancements greatly impacted the tactics and outcomes of the war. One key technology was artillery, which provided long-range firepower and allowed for targeted bombardment of enemy positions. For instance, the German siege cannons known as 'Big Berthas' were capable of destroying forts and inflicting heavy casualties. Another significant development was the widespread use of machine guns, which provided a deadly defensive firepower. The devastating effects of machine guns were evident in battles such as the Battle of the Somme, where British forces suffered heavy losses in their attempts to advance against the German machine gun positions.

Poison gas was another innovation utilized during the conflict. The Germans were the first to employ gas on a large scale, introducing chlorine gas at the Second Battle of Ypres in 1915. This marked the beginning of chemical warfare in World War I. Gas attacks caused widespread panic and terror among the troops and had a profound psychological impact on both sides. Lastly, the introduction of tanks significantly impacted the war. Although early tanks were slow and unreliable, they provided a mobile platform that could traverse difficult terrain and withstand machine gun fire to support infantry advances. At the Battle of Cambrai in 1917, tanks demonstrated their potential when they broke through German lines, showing the importance of armored vehicles in future warfare.