Archaeologists Unearth a War Zone 5,500 Years Old - New York Times

"Archaeologists hope that the remains of Tell Hamoukar, the oldest-known excavated site of large-scale organized warfare, may provide a 'frozen context' to help them understand cultures in ancient Mesopotamia." (from Rebecca's Pocket)

Archaeologists Unearth a War Zone 5,500 Years Old - New York Times