The evolution of warfare tactics during World Wars I and II reflected dramatic changes in strategy, technology, and military thinking. In World War I (1914-1918), war tactics were dominated by trench warfare. On the battlefields of Europe, armies were trapped in prolonged battles, with static front lines. Heavy weapons such as cannons, machine guns, and poison gas changed the nature of battle to a defensive effort. A strategy like “Over the Top” shows how difficult it is to attack a well-hidden and well-equipped enemy position. In this development, new technologies emerged, including tanks that were first used in the battle at the Somme in 1916. Although tanks were still in their infancy, these innovations represented a step towards mobility on the battlefield. Early trials of the use of aircraft for reconnaissance and attack also began, introducing a third dimension to warfare. Continuing into World War II (1939-1945), the transformation in tactics became increasingly obvious. Blitzkrieg, or “Blitzkrieg,” became Germany’s primary strategy. This approach emphasized rapid attacks and coordination between tanks, infantry and air forces. This high mobility concept has succeeded in occupying much of Europe efficiently. These tactics relied on elements of surprise and speed, in contrast to the static warfare of WWI. Meanwhile, the Allies adapted a more nuanced approach. At sea, submarine combat changed the way of naval warfare, with German U-Boats versus the Allied fleet giving rise to new tactics in anti-submarine warfare. The Battle of Midway demonstrated the importance of intelligence and air strikes in determining victory. Technological innovations, such as the use of radar and better communications systems, increased the effectiveness of combat teams and attack strategies. The use of paratroopers and airborne invasions, such as those on D-Day, changed the way combat was fought on the surface. This success stemmed not only from the tactics implemented but also from the ability to adapt and apply lessons from previous battles. This revolution in war tactics also includes asymmetric warfare, where smaller groups use guerrilla strategies. This is observed in many locations after major wars, where smaller powers fought against larger authorities. This kind of tactic shows that strength is not always directly proportional to the power you have. From World War I to II, the evolution of tactics showed increasing complexity in warfare. Various factors, including technology, ideology, and innovation capabilities, play an important role. Soldiers who are able to adapt quickly to new environments and emerging technologies consistently gain an advantage. This transformation is an important lesson in military history that continues to influence the way armed forces around the world plan and carry out military operations.