In-group solidarity heightened by living through war

War experiences have a long-term effect on human psychology, shifting people's motivations toward greater equality for members of their own group, according to research forthcoming in Psychological Science, a journal of the Association for Psychological Science. According to study co-author Joseph Heinrich of the University of British Columbia, "these effects have the potential to explain both why conflict sometimes leads to cycles of war and sometimes stimulates nation-building in its wake... via Health News from Medical News Today Read More Here..