▁him . ▁Den ain ▁was ▁Head ▁of ▁the ▁French ▁Military ▁Mission ▁to ▁Poland ▁ 1 9 2 4 ▁through ▁ 1 9 3 1 . ▁▁▁ ▁From ▁ 1 0 ▁March ▁ 1 9 3 3 ▁to ▁ 6 ▁February ▁ 1 9 3 4 , ▁General ▁Den ain ▁served ▁as ▁the ▁Chief ▁of ▁the ▁Air ▁Force ▁General ▁Staff ▁under ▁Air ▁Minister ▁Pierre ▁Cot , ▁replacing ▁General ▁Joseph ▁Bar ès . ▁ ▁Den ain ▁and ▁Cot ▁de alt ▁with ▁the ▁Ar mee ▁de ▁l ' A ir ' s ▁techn ological ▁issues . ▁ ▁They ▁built ▁a ▁series ▁of ▁new ▁aircraft ▁built ▁to ▁make ▁the ▁air ▁services ▁compet itive ; ▁they ▁worked ▁with ▁French ▁aircraft ▁manufact ur ers ▁on ▁improvements ▁to ▁aircraft ▁design ▁and ▁production ; ▁and ▁they ▁made ▁thre ats ▁to ▁national ize ▁the ▁French ▁av iation ▁industry . ▁Den ain ▁developed ▁a ▁strateg ic ▁role ▁for ▁the ▁Air ▁Force ▁with ▁plans ▁in ▁ 1 9 3 3 ▁for ▁equ ipping ▁it ▁with ▁ 1 , 0 0 0 ▁new ▁plan es . ▁ ▁From ▁ 9 ▁February ▁ 1 9 3 4 ▁to ▁ 2 4 ▁January ▁ 1 9 3 6 , ▁he ▁was ▁A viation ▁Minister ▁in ▁the ▁Gast on ▁Dou mer gue ▁government . ▁During ▁this ▁time , ▁an ▁on ▁beh alf ▁of ▁France , ▁Den ain ▁announced ▁this ▁his ▁country ▁would ▁ ▁organ ize ▁a ▁Paris ▁to ▁H ano i ▁air ▁race ▁in ▁ 1 9 3 5 , ▁mode led ▁after ▁the ▁London - M el