Swinden, G. 2021. Hal M. Friedman, Blue versus Purple: The U.S. Naval War College, the Soviet Union, and the New Enemy in the Pacific, 1946 (Greg Swinden). The Northern Mariner / Le marin du nord. 30, 1 (Jun. 2021), 88–90. DOI:https://doi.org/10.25071/2561-5467.103.