THIS DOCUMENT IS THE PROPERTY OF HIS BRITANNIC MAJESTY'S GOVERNMENT Circulated for the consideration of the Chiefs of Staff The circulation of this paper has been strictly limited. It is issued for the personal use of TOP SECRET Copy No. 91 J.I.C. (51) 18 (Final-Revise) 9th May, 1951 CHIEFS OF STAFF COMMITTEE JOINT INTELLIGENCE COMMITTEE SCALE AND NATURE OF AIR ATTACK ON THE UNITED KINGDOM, 1951–57 REPORT BY THE JOINT INTELLIGENCE COMMITTEE (This report supersedes J.I.C. (49) 9 and J.I.C. (49) 10) We have examined the scale and nature of all forms of air attack likely to be delivered on the United Kingdom by the Soviet Union in the event of war between 1951 and 1954.