Would the world be better off without Religion?

Hmph.

Back on topic.

Wars for the most part may have been influenced, but God has not called for it, when you think about it. Even back with the Romans they used their arsenal of Gods to justify their wars when in fact they were solely based on greed.

Yet, there are so many wars that have been caused by them..

All of the Crusades.
The Troubles in Ireland
Rwanda 1994
Boznia-Herzegovina (and by extension Kosovo)
The Ivory Coast civil wars
Cyprus
East Timor civil war
Sri Lankan civil war
Current Iraqi civil war
Hezbollah vs. Israel
Syria vs. Israel
Kashmir civil war
Chechnya civil war
Sudan
Thirty Years War
9/11 and our current war in Afghanistan was somewhat influced by the Muslims that believe 'death to the infidels', so that could be placed in as a technicality.
WWII was based on Hilter wanting to kill the entire jewish population.