Weapons of World War I and World War II Have you ever thought about the advances of war technologies between World War I and World War II? There are many big differences including the atomic bomb and the strategies used. Some of the major differences in technology and strategies are infantry, aviation, biological, and naval warfare. One of the big differences in World War I and World War II is the infantry. In World War I troops in the infantry were outfitted with many things. It cost a total of