Determining the war with the highest death toll is complex, as accurate records are often unavailable, especially for historical conflicts. However, the Second World War (1939-1945) is widely considered to be the deadliest war in human history.
Estimates vary, but the war is believed to have resulted in the deaths of 70 to 85 million people, including military personnel and civilians.
The war's devastating impact was felt across the globe, with major conflicts occurring in Europe, Asia, and the Pacific.
The widespread use of advanced weaponry, including nuclear weapons, resulted in unprecedented levels of destruction and casualties.
Other wars, such as the First World War (1914-1918) and the Mongol Conquests (1206-1405), also resulted in significant death tolls.
However, the sheer scale of the Second World War, its global reach, and the technological advancements that fueled its brutality make it the most likely candidate for the deadliest war in history.