People are aware that there are two world wars that have happened in history but some people are not aware that there are some differences between these two types of war. WWI is considered to be a bit more primitive because the items that were used to fight are considered to be very old.
They used poison gas and some machine guns. For World War II, those who were fighting were able to create more destruction because they have already started to use really big machines to destroy a lot of items and were also able to kill more people. Both wars are considered to be really bad because of the number of deaths of civilians who did not deserve to become part of the war.