 Giraud succeeded Darlan and ordered the arrest of Aboulker and 26 other Resistance leaders for complicity in Darlan's assassination, and they were immediately deported to prison camps in southern Algeria.Freed following the Casablanca Conference in 1943, Aboulker travelled to London in May 1943 and joined the Free French.In October of that year, he was sent secretly into occupied France, as someone "responsible for the organization of the health service of the Resistance movement", preparing for the Liberation.