With the victory of the Islamic Revolution, the action of the enemies in the form of imposed war and the reaction of the internal elements of the society with the approach of Shiite political thought, led to the holy defense. Social convergence or divergence due to the resulting conditions is an issue that has not received much attention. The Crisis of the imposed war fundamentally changed collective action-reactions to social solidarity. So the question of the present study may be taken as: how the holy defense of IRI against Iraq has affected social solidarity? This descriptive-analytical study seeks to investigate the influential components and intellectual roots of strengthening the concept of social solidarity in the conditions of imposed war. Therefore, by forming national and Islamic identity, loyalty and division of social work, the holy defense strengthens common social values and actions, and by promoting religious motivations, the spirit of national sensibility and public support, a common policy and national harmony strengthened social solidarity.