Godless said:
Anthropological theories
Several anthropologists take a very different view of war. They see it as fundamentally cultural, learned by nurture rather than nature. Thus if human societies could be reformed, war would disappear. To this school the acceptance of war is inculcated into each of us by the religious, ideological, and nationalistic surroundings in which we live.
http://en.wikipedia.org/wiki/War
In reality Sam there are many ways to look at war, either by secular aggresion or religious, it comes down to conflicting idealogies, and those conflicting idealogies, wether you like it or not, more often than not, happen to be RELGIOUS!
Oh come on! Nurture?
What about "flight or fight"?
We are born with the instinct to fear or fight. It's biological. Don't you see it in animals?
There are people who are naturally very aggressive although how they channel their aggressiveness may depend on nurture. But human beings are territorial creatures. Why else the notion of tribe, community, nation, color, class, ethnicity? We differentiate based on qualities that appear similar or dissimilar. And we fight to protect what's ours. Men kill for power, women, land everywhere. Why do so many people keep firearms in their house?
Look at ancient history, the Greeks, the Egyptians, the Incas, the Aztecs.
Which one of them did not fight? And what did it have to do with religion.
Violence is a part of nature. What is the reason for domestic violence, gang wars, corporate wars(bloodless but wars just the same)?
And look at the causes of war.
Nations go to war because:
* They have or perceive no other options for resolving differences or grievances.
* They face an immediate or perceived threat from an aggressor.
* They want something that another nation has, such as land, wealth, natural resources, slaves, technology, etc.
* An immediate need for essential provisions for survival (food, water, and shelter) may push a nation to go to war in order to secure these resources. For example, if a nation gets its water supply from a single river, and an enemy force captures that river, that nation would then go to war for the purpose of securing that river again so it can continue to use it as its water supply.
* Areas of a country (such as provinces, states, and colonies) may choose to fight for their independence from that country.
* A long standing hatred between nations that has built up over a number of years (rivalry or other antagonisms).
* Belief in one nation's or race's superiority over others may cause wars as that group attempts to cast aside people it sees as inferior.
* Religion can cause wars if the nations involved cannot agree on what is morally right or wrong. Religious texts, customs, beliefs and ways of life may prohibit compromising with another nation or force.
* Ideological differences can often trigger conflict in a manner similar to religion. For example, Nazism's hatred of Communism contributed to the outbreak of war between Germany and the Soviet Union during the Second World War. The Sino-Soviet Split nearly became an armed conflict between the Soviet Union and China over the goals of Communism.
* Some nations may wish to pursue global domination, but all historical attempts at this have failed.
How many of these causes have to do with religion?