Interstate conflict can reduce support for incumbents: evidence from the Israeli electorate and the Yom Kippur War

Does war affect support for incumbent leaders and parties? The literature is divided with studies reporting negative, positive, or null-effects. Many studies analyze the consequences of foreign intervention, and less is known about the political costs of wars fought close to home. Building on theories of retrospective voting, we theorize that wars inform voters about leader’s competence, and in turn affect mass attitudes and behaviors. Leveraging the unexpected onset of the 1973 Yom Kippur war which interrupted an ongoing Israeli public opinion poll, and voting records from four national elections linked with Israeli military fatality data, we demonstrate that despite the ultimate military victory, the war and its casualties reduced support for incumbent parties and leaders, and increased support for the opposition. By moving beyond foreign interventions, we provide strong evidence that wars over a country’s core territory can be politically costly for incumbent leaders and parties.