Recherche dans la collection - EAC [Eastern Air Command] file 22-2 vol [volume] 2 - "Intelligence air" rpts [reports] and ltrs [letters] re [regarding]: Army co-op [co-operation] use of Tomohawks for Army co-op, winter flying boat routes across USA [United States], liaison with USN [United States Navy], bombing tactics, org [organization] of RCAF Intell Serice [Royal Canadian Air Force Intelligence Service], RCAF intelligence procedures, def [defence] of Air Force as a separate force, WAC [Western Air Command] attack on suspected sub [submarine], repts [reports] by RAF [Royal Air Force] Air Fighting Development Unit on Stirling, Typhoon, HE 11, Airacobra - Sep 41 to Apr 42