The technological development of heavy artillery in World War 1 was the most significant and it has the largest impact on the present day. Firstly, the heavy artillery that was used in World War 1 helped change how wars were fought from then on. In World War 1, many European countries used cavalry and other uses of horses because of how wars were previously fought. However, approximately 8 million horses were killed due to the new technology that was used in World War 1. The efficiency of the heavy artillery and the craters that the shells formed made horses useless which led to horses not being used in more modern wars. Secondly, the idea behind heavy artillery is still used in more modern wars. The Soviet Union and the United States of America