Correspondence relating to Collier's work as Air Attaché in Moscow, 1934-1937, and as Head of the Air Section of the British Military Mission to Moscow, 1941, with particular reference to the role of Brig Gen Philip R Faymonville, United States Army, Military Attaché and later Lend-Lease Administrator in Moscow, 1934-1943, in relations between the USA and the USSR during the period 1918-1943, consisting of photocopies of letters to Collier from Lt Col Thomas A Julian, Associate Professor of History at the USAF Academy and carbon copies of Collier's replies, dated 1968-1969.