The Return of Retief - Retief, Bk 13 Author:Keith Laumer A vast and powerful race, the Ree needed breeding room for an ever increasing population -- and their expansion plans took no account of human territory. Retief, already on probation for undiplomatic behavior, earned himself the assignment of parleying with the Ree when he urged force against them. A suicide mission? Perhaps. But Retief is Retief.