ANNEX. G2/I. TJB. MOST SECRET. By authority A. C. of S., G-2 Date SEP. 5 1941. ( ) Initials. I.B.122. September 5, 1941. MEMORANDUM FOR THE CHIEF OF STAFF: Subject: Brief Periodic Estimate of the World Situation. 1. This estimate covers the period September 3-December 1, 1941. 2. In this period the dominating elements of the situation will be: (a) The preoccupation of Germany with the U.S.S.R. (b) The inability of Great Britain and her associates to take the strategic offensive. In consequence a militarily decisive phase of the war will not be reached.