Could an Orleanist restoration stabilize France before war?

If the House of Orleans returned to power in France in 1931, would it improve political stability and preparations for war?

Only if the new arrangement could address both political disagreement and fear of the army. Removing one problem while leaving the other would bring little improvement.

The effect of a restored crown would depend on how the government beneath it operated. Two obstacles dominate the answer: French politicians disagreed over what to do, and they feared that the army might remove them from office. A monarchy could change the relationship between civilian government and the armed forces, but that would still leave the problem of agreement over policy. Better war preparation therefore depends on how the restoration changes institutions and political cooperation.