According to Guns, Germs, and Steel, why was the development of religions and government, in addition to guns, germs, steel and writing, an agent...

The
development of religion and government counted as an agent of conquest because it helps ensure
that a society will have the soldiers and the resources needed to fight other societies.  This
gives a society that has organized religion and government advantages over a society that does
not.

A society is likely to conquer another society if it has more soldiers,
more weapons and more of other sorts of resources.  A...