World War 1 only caused 24 million deaths compared to World War 2 that caused 60 million deaths
Worldwide. WWI was a bit shorter than WWII, which lasted for six years, where
WWI lasted only about 4 years. In WWI Germany invaded only a few countries with the battles, whereas in WWII Germany took over many countries with Hitler in power. Many countries were involved in both of these hellish wars. Most of the countries that took part in WWI were also in WWII. Most of the countries that were part of WWI were also a part of WWII. There were two powers in WWI. The first power was called the Central Powers, which consisted of Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire. The other power was called the Allied power, which included USA, Britain, Russia, and China.
In World War 1, soldiers fought in the trenches, which were very horrible for the soldiers to survive. It was also the first time, soldiers used machine guns, tanks, and flamethrowers so it took time for them to adapt to it. In addition to these ways, World War 2 soldiers used radar and other weapons that were far more advanced in that at that time. The most memorable weapon was the use of the atom