The topic of military and military-technical cooperation between the Soviet Union and foreign countries was completely taboo for many years. This book is the result of many years of research and search by the author. It talks about the cooperation of the USSR with Afghanistan, Syria, India, Bangladesh, Kampuchea and Indonesia, analyzes the reasons that forced the Soviet government to help foreign countries in developing military power, and examines the participation of Soviet military specialists in local conflicts of the second half of the 20th century.