Volume IIIA is the first of two volumes relating to the Soviet armed forces, mobilisation and war-economy from June to December 1941. All the significant Soviet weapon systems and combat squads used in the campaign are analysed using the quantitative methodology detailed in Volume I, along with the contextual history. An assessment of each weapon system's inherent 'combat power' is provided, as well as attributes such as the relativeanti-tank, anti-personnel and anti-aircraft values. Volume IIIA then focuses on the detailed Shtaty (TOEs) for all the Soviet land unit types fielded across the USSR during 1941. All significant units in the RKKA (Red Army), VVS, VMF, PVO and NKVD are included; ranging from the largest mechanised corps and tank divisions, down to small mortar battalions, PVO anti-aircraft battalions and NKVD security companies. In all cases the data is presented in detailed tables, using the weapon systems and combat squads previously analysed. Volume IIIA also includes the most detailed Orders of Battle ever published on the Red Army, PVO and NKVD forces on 22nd June 1941. Even small and obscure units are included down to battalion and company level. Lastly, Volume IIIA examines in detail every unit's actual personnel and equipment in each of the USSR's Western Military Districts when the Axis forces invaded. Operation Barbarossa: the Complete Organisational and Statistical Analysis collates an immense amount of information from many sources, and presents it with contextual history and analyses. The professional or amateur scholar is provided with comprehensive details of all the armed forces on the East Front during 1941, as well as the relevant economic and logistical support. The complete work represents the most accurate and comprehensive quantitative analysis yet, of the East-Front campaign. Currently no other single work provides a comparable reference on what was the most decisive and destructive campaign of WWII. "When complete, this series on Operation Barbarossa will be without peer." David. M. Glantz, Editor-in Chief, Journal of Slavic Military Studies. "An extremely useful resource to military historians seeking detailed assessments of the armed forces on the Russian Front in 1941. They are based on extensive archival research, and provide a level of detail far beyond that found in conventional military histories. Even for Russian Front specialists, they provide a valuable synthesis of data that is otherwise scattered through specialist studies and archival resources, and they offer an unprecedented data-base for military historians studying the 1941 Barbarossa campaign". Steven Zaloga, Journal of Slavic Military Studies. "Askey's book is totally unique. It provides the reader with a most valuable key to the understanding of the huge war on the Eastern Front during World War II. It is a goldmine of information that answers the many, many questions that rise from reading other Eastern Front books. Nigel Askey also deserves praise for the very detailed source references, and the high quality of sources that he has used. When the whole series is completed, it is bound to become the major reference work on the Eastern Front on the same level as John Erickson and David Glantz. Without doubt, Askey's work is a milestone, and an indispensable reference work on Operation Barbarossa for probably decades to come". Christer Bergström, forum.axishistory.com. Author of Operation Barbarossa 1941: Hitler against Stalin (2016), Black Cross/Red Star: Air War over the Eastern Front (2000-2006), Kursk: The Air Battle (2008), Bagration to Berlin (2008), and other books on the Eastern Front. As a professional military historian with a special interest in the Eastern Front in WW2, I have spent decades researching and writing about Adolf Hitler's surprise attack on the Soviet Union in the summer of 1941. In all these years, however, I have never found a published source on the topic more unique, provocative and insightful than Nigel Askey's series of books entitled: Operation Barbarossa: The Complete Organisational and Statistical Analysis, and Military Simulation. These books represent the culmination of the author's many years of intense and comprehensive research into published and unpublished source materials (German, Soviet, and Russian) addressing the Barbarossa campaign (June-December 1941) in virtually all its aspects. Only in these books will one find the most exquisitely detailed orders of battle hitherto published, as well as voluminous data on topics ranging from war production, mobilization, and logistics to the effectiveness of land, air, and sea weaponry of both belligerents. Just as significant, Askey's ground-breaking work formalizes perhaps the most sophisticated military simulation methodology yet conceived, embracing a full range of tactical, operational, and strategic simulations. These volumes are so valuable at so many levels: the war gamer, serious military histo