Final answer:
Approximately 40 million deaths were counted after the end of World War I, including 8.5 million military deaths and around 21 million civilian deaths. The casualties were spread across various countries, with Russia, France, and Germany experiencing the highest numbers of deaths.
Step-by-step explanation:
After the end of World War I, the number of deaths amounted to approximately 40 million people, including soldiers and civilians. This figure includes military deaths of 8.5 million soldiers and civilian deaths of around 21 million individuals. The casualties were spread across various countries with Russia, France, and Germany experiencing the highest numbers of military and civilian deaths. The influenza epidemic that followed the war also resulted in the deaths of at least 21 million people globally.