With the outbreak of the German war against the USSR, strong Finnish and Romanian armies fought together with German troops. Nearby were significantly smaller and weakly armed military contingents from Hungary, Italy and Slovakia. When the armed forces of Finland reached the line of the Soviet-Finnish border of 1939, they refused to further advance deep into the territory of the USSR. Other national contingents were exhausted by the beginning of the winter of 194142, and the Hungarian and most Romanian units were assigned to the rear to regroup. The book of P. Abbott and N. Thomas examines in detail the organization, structure of military formations, participation in hostilities, uniforms and insignia of military personnel of the German allies who fought on the Soviet-German front.