Letter: Warfare may have made us, but it may undo us

From Tony Compton, Hexham, Northumberland, UK

You report on research that suggests warfare at least partially sparked the rise of complex civilisations (2 July, p 14).

Before supporters of and apologists for military activity get too excited, it should perhaps be pointed out that complex civilisations have, in the main, been responsible for large-scale wars and the climate emergency.

What’s more, with the rise of nuclear weapons, wars may well lead to the destruction of complex civilisations.