The biggest war in history was this one involving 61 countries & more than 110 million soldiers
The Norman knights fielded at the Battle of Hastings were more than a match... [DOC] [TLE] Religious war - Wikipedia [PAR] A religious war or holy war (Latin: bellum sacrum) is a war primarily caused or 
justified by .... Of these, religious wars account for less than 2% of all people 
killed in warfare.