DID YOU KNOW? The shortest war on record took place in 1896 when Zanzibar surrendered to Britain after 38 minutes.
”A tribe is a society tracing its origin back to a single ancestor, who may be a real person, a mythical hero, or even a they usually view outsiders as dangerous and conflict against them as normal. The possession of permanent territories to defend or conquer brought the need for large-scale battle in which the losing army would be destroyed, the better to secure the disputed territory. The coming of `civilization' therefore brought the need for organized bodies of shock troops.”
Many wars, conflicts, revolutions, and genocides shaped the 20th century outside of these top three largest. Take a look at this chronological list of other major wars of the 20th century to see just how much this century was impacted by battle.