 Nyorai kupfuurira kweiyi ndima - Christie akatora examen artium yake muna 1935, uye akapinda muTechnische College yeBerlin kubva muna 1935 kusvika muna 1937 uye Hærens Flyveskole kubva muna 1937 kusvika muna 1939. Hondo Yenyika II payakatanga, Christie, aiva nechinzvimbo chesajeni, akashevedzwa kunhandare yendege yeSola senhengo yevarindi vokuNorway vakanga vasina kwavakarerekera. Zvisinei nhandare yendege yakarwiswa neGermanymusi wa9 April 1940 uye kurwa kwakatevera. VaNorway vakarasikirwa nehondo yacho, asi Christie akakwanisa kudzokera kunyika yomukati. Boka rake rakabatanidzwa mukurwisana kusvikira pana 23 April, pashure pacho rakadzokera mberi kumabvazuva. Norway pakupedzisira yakawira pasi pokutonga kweGermany, uye mumatsutso a1940 Christie akatizira kuCanada achipfuura neSweden, Soviet Union neUnited States. Akabatana neuto remhepo raiva muudzingwa kuLittle Norway, uye akapedza nguva yasara yehondo ari mutyairi wendege. Iye akarayira Norwegian No. 332 Squadron, ipapo RAF raMwari 234 Squadron, uye sezvo bapiro mutungamiri 150 Wing uye Hunsdon Wing kubhururuka P-51 Mustang, richisvika chinzvimbo lieutenant Colonel. Pashure pemabasa 244 akaurayiwa pamusoro peGermany musi wa 18 April 1945 uye akabatwa somusungwa wehondo kusvikira hondo yapera. Havasi vazhinji vomukirasi yake yeHærens Flyveskole vakapukunyuka hondo. 