 Harman returned to Barbados on 10 November 1667, and since peace had been concluded he sailed for England, arriving in the Downs on 7 April 1668.Harman served under Sir Thomas Allin in 1669–70 in the expedition to the Straits.In this expedition Allin was sent to punish the Barbary corsairs for violating the treaty between England and Algiers and plundering English merchantmen.