Regarded as the standard work on the air war over the Eastern Front during World War II, Christer Bergström's unique Black Cross/Red Star series covers the history of the air war on the Eastern Front in close detail, with the perspectives of both sides. Based on a close study of German and Russian archive material, as well as interviews with a large number of the airmen who participated in this aerial conflict, it has established itself as the main source on the air war on the Eastern Front.
Black Cross/Red Star, Volume 4 covers the air war along the entire Eastern Front during the period winter 1942/1943 through the spring of 1943, in great detail, with a balance between German and Soviet archive sources etc, and with many first-hand accounts. It is of the same size as the other volumes, but with a word count twice as large, and it also contains aircraft color profiles. The author has studied the air war over the Eastern Front for several decades. This work is based on primary sources from both sides and interviews conducted by the author with a large number of veterans from both sides.