ing ▁run . ▁He ▁was ▁permitted ▁only ▁to ▁eng age ▁in ▁air ▁combat ▁with ▁the ▁enemy ▁in ▁defense . ▁Con sequently , ▁he ▁earned ▁only ▁two ▁confirmed ▁" k ills " ▁in ▁this ▁time ▁period , ▁not ▁nearly ▁as ▁many ▁as ▁his ▁ace ▁pe ers ▁who ▁had ▁more ▁ag gress ive ▁assign ments . ▁He ▁was ▁ade pt ▁at ▁keeping ▁his ▁plane ▁out ▁of ▁the ▁enemy ' s ▁firing ▁angle , ▁and ▁if ▁prov oked ▁he ▁was ▁sk illed ▁enough ▁to ▁send ▁the ▁German ▁and ▁Aust rian ▁pil ots ▁into ▁retre at ▁when ▁he ▁turned ▁on ▁them . ▁ ▁After ▁the ▁United ▁States ▁joined ▁the ▁war , ▁Hav il and ▁became ▁Executive ▁Officer ▁of ▁a ▁Naval ▁Air ▁Station ▁at ▁D unk irk , ▁France ▁with ▁one ▁month ▁of ▁special ▁duty ▁in ▁the ▁ 1 3 th ▁Squadron ▁R N AS ▁flying ▁a ▁S op with ▁Cam el ▁single - se ater ▁bi plane . ▁In ▁July , ▁ 1 9 1 8 , ▁L t . ▁Hav il and ▁was ▁re ass igned ▁to ▁command ▁the ▁Naval ▁Air ▁Station ▁( 2 6 3 ª ▁Squad rig lia ) ▁near ▁the ▁village ▁of ▁Porto ▁C ors ini ▁in ▁Italy ▁and ▁train ▁pil ots ▁there . ▁" So ▁successfully ▁did ▁the ▁station ▁carry ▁out ▁its ▁mission ▁that ▁Admir al ▁H . ▁T . ▁May o , ▁US N , ▁stated ▁on ▁the ▁basis ▁of ▁his ▁ins pection ▁ 1 0 ▁November ▁ 1 9 1 8 , ▁that ▁the ▁station ▁had ▁' the ▁distinction ▁of