Cover art
Deutsch, Harold, and Dennis Showalter (eds.). What If: Alternate Strategies of World War II. Emperor 1997.
Cover art
Showalter, Dennis, and Harold Deustch (eds.). If the Allies Had Fallen: Sixty Alternate Scenarios of World War II. Skyhorse 2010.

Deutsch, Harold, and Dennis Showalter (eds.). What If: Alternate Strategies of World War II [vt If the Allies Had Fallen: Sixty Alternate Scenarios of World War II]
Summary: Collection of sixty scenarios by historians, considering such questions as what if World War II had begun in September 1938, if Britain had sued for peace in 1940, if the Japanese had launched another strike against Pearl Harbor, if Hitler had stayed out of military decision making, and if there had been no atomic bomb. Includes work by Thomas M. Barker, Harold C. Deutsch, Walter S. Dunn, Robert M. Love, D. Clayton James, Bernard C. Nalty, Richard J. Overy, Paul Schratz, Dennis E. Showalter, Gerhard L. Weinberg, Anne Wells, and Herman S. Wolk.
Comments: The 2010 edition includes a new introduction by William Forstchen.
Published: As What If: Alternate Strategies of World War II, Combined 1997 (1883476070BUY).
Published: As If the Allies Had Fallen (as edited by Showalter and Deutsch), Skyhorse 2010 (1616080272BUY).