World War I (1914–1918)
- Total military deaths: Approximately 17 million
World War II (1939–1945)
- Total military deaths: Approximately 70–85 million (includes military personnel from all sides of the conflict)
These figures represent the deaths of military personnel during the respective world wars, including those killed in combat, accidents, diseases, and other causes related to military service. However, it is worth noting that the number of veterans who died after the wars due to war-related factors such as post-traumatic stress disorder (PTSD), injuries, or illnesses is not precisely known.
Furthermore, the total number of veterans who died during or after the world wars would also include those who passed away due to natural causes, which would be much harder to determine and would require extensive research and data compilation.