▁Pacific ▁Ocean ▁region ▁and ▁in ▁support ▁of ▁al lied ▁forces ▁in ▁the ▁Korean ▁War . ▁M AT S ▁re open ed ▁the ▁C - 5 4 ▁Fl ight ▁Training ▁School ▁as ▁the ▁ 1 2 7 2 d ▁Med ium ▁Trans ition ▁Training ▁Unit ▁in ▁May ▁ 1 9 5 0 , ▁one ▁month ▁before ▁the ▁Korean ▁War ▁began . ▁ ▁Following ▁Cont inental ▁Air ▁Command ' s ▁formation ▁of ▁cor ollary ▁units ▁in ▁the ▁May ▁ 1 9 4 9 ▁reserve ▁program , ▁the ▁wing ▁assumed ▁responsibility ▁for ▁training ▁res erv ists ▁assigned ▁to ▁the ▁ 8 5 2 3 d ▁Air ▁Transport ▁Squadron ▁( Cor ollary ). ▁ ▁Cor ollary ▁units ▁were ▁reserve ▁units ▁integrated ▁with ▁an ▁active ▁duty ▁unit . ▁ ▁They ▁were ▁viewed ▁as ▁the ▁best ▁method ▁to ▁train ▁res erv ists ▁by ▁mixing ▁them ▁with ▁an ▁existing ▁regular ▁unit ▁to ▁perform ▁duties ▁alongside ▁the ▁regular ▁unit . ▁ ▁In ▁May ▁ 1 9 5 1 , ▁the ▁ 8 5 2 3 d ▁mobil ized ▁for ▁the ▁Korean ▁war , ▁with ▁its ▁personnel ▁used ▁as ▁fill ers ▁for ▁other ▁units . ▁ ▁The ▁wing ▁assumed ▁responsibility ▁for ▁a ▁second ▁flying ▁group , ▁the ▁ 1 7 0 3 d ▁Air ▁Transport ▁Group . ▁ ▁Until ▁ 1 9 5 1 , ▁the ▁ 1 7 0 3 d ▁fle w ▁Douglas ▁C - 7 4 ▁G lob em aster ▁Is . ▁ ▁In ▁May ▁ 1 9 5 1 , ▁it ▁received ▁its ▁first ▁Douglas ▁C - 1