This study examines the effect of political information levels and intervention stages on the formation and continuity of public support for military interventions by analyzing survey data pertaining to the 2003 military intervention in Iraq. The results show that before and immediately after the launch of the intervention, politically uninformed individuals expressed higher support for the war compared to politically informed ones. However, as the intervention proceeded and casualties were incurred, higher rates of decrease in support were observed among the politically uninformed. Politically informed individuals, on the other hand, demonstrated more stable levels of support throughout the course of the intervention.