The German planning process for the 1941 invasion of Soviet Russia is analyzed through the presentation of the major plans developed from July 1940 until June 1941. The final plan is then critiqued within the context of the applicable Principles of War. The planning process was characterized by significant disagreements between Hitler, the German High Command and the Army High Command. The major points of contention relate to the selection of primary objectives and force deployment patterns. A set of conclusions is presented which argues that the planning process was faulty due to a number of assumptions which were generally held by the officers who were involved in the process.