▁In ▁November ▁ 1 9 4 1 , ▁the ▁ 2 4 th ▁was ▁augment ed ▁by ▁two ▁attached ▁squad rons ▁( 2 1 st ▁and ▁ 3 4 th ) ▁which ▁were ▁sent ▁from ▁the ▁ 3 5 th ▁P urs uit ▁Group ▁at ▁Hamilton ▁Field , ▁California . ▁Also ▁in ▁November , ▁a ▁number ▁of ▁additional ▁P - 4 0 Es ▁were ▁sent ▁to ▁the ▁Group , ▁which ▁equ ipped ▁the ▁ 3 d , ▁ 1 7 th ▁and ▁ 2 1 st ▁Squad rons . ▁ ▁The ▁ 3 4 th ▁P urs uit ▁Squadron ▁was ▁assigned ▁P - 3 5 A , ▁the ▁remainder ▁of ▁the ▁P - 3 5 s ▁being ▁sent ▁to ▁the ▁Philippines ▁Air ▁Corps . ▁ ▁E ve ▁of ▁war ▁Notice ▁was ▁received ▁by ▁the ▁group ▁on ▁ 1 5 ▁November ▁that ▁due ▁to ▁the ▁t ense ▁international ▁situation ▁between ▁the ▁United ▁States ▁and ▁the ▁Japanese ▁Empire , ▁all ▁purs uit ▁aircraft ▁on ▁the ▁flight ▁line ▁would ▁be ▁placed ▁on ▁alert ▁ 2 4 ▁hours ▁each ▁day , ▁be ▁armed , ▁and ▁be ▁fully ▁fue led ▁with ▁pil ots ▁available ▁on ▁ 3 0 ▁minutes ' ▁notice . ▁During ▁the ▁period ▁ 3 0 ▁November ▁to ▁ 6 ▁December ▁all ▁squad rons ▁under w ent ▁int ensive ▁training ▁in ▁day ▁and ▁night ▁enemy ▁inter ception ▁and ▁air - to - air ▁g unn ery . ▁ ▁Also ▁training ▁in ▁esc ort ing ▁B - 1 7 ▁F lying ▁Fort ress es ▁of ▁the ▁