The product is a set of two hardcover books titled "Russia Leaves the War & The Decision to Intervene" by George F. Kennan. Published by Princeton University Press in 1956, these books deal with the subject of Soviet-American relations during the military and war period. As a first edition, original print in English, these books provide valuable insights into the historical context of this significant time in world history. The set would be a valuable addition to any collector's library, especially for those interested in military history and international relations.