After the failure of the Waterloo campaign and the second restoration, Valée was retained by Louis XVIII as Inspector-General of the artillery.

In 1837 when the need arose for an experienced artillery general, Valée was reinstated on the active service list and sent to Algeria.

[3] Valée was then made governor-general and in 1839 organised the Iron Gates expedition this restarted the war between France and Abd-el-Kader.

While victorious in some minor engagements, around Boufarik and the Mouzaïa pass he oversaw French forces occupying Cherchell, Medea and Miliana.

But these did not quell the uprising and infact only gave the French greater garrisoning requirements that complicated their task in supressing Abd el-kader's insurgency.