Kunyange zvazvo Jung akanyoresa muuto reCanada muna 1939, haana kugamuchira mugove wake wokutanga kutozosvikira muna 1944, zvikurukuru nemhaka yokuti vezvematongerwe enyika muOttawa neVictoria vakanga vasingadi kubata nenyaya dzokugovera rusununguko kuvaChinese pashure pehondo. Zvisinei, panguva yehondo Winston Churchill's Special Operations Executive akaunganidza Jung neboka revarwi vechiChinese-veCanada muForce 136, boka revashandi vezvakavanzika vakagoverwa kuBritish Malaya kunodzidzisa varwi vemunharaunda kuti varwise maJapan Imperial Army anogara muMalaya
neSingapore. Basa ravarwi vokuAsia vokuCanada raizivikanwa seOperation "Oblivion". Ivo vakagamuchira rovedzo yeparachuti muAustralia uye vakazvigadzirira vamene kurwisana muSouth West Pacific. Zvisinei, kuvhiyiwa kwacho kwakangoerekana kwakanzverwa. Panzvimbo pezvo, Jung akaendeswa kuBritish Borneo neNew Guinea dzaiva pasi peJapan, uye akatungamirira mauto ake pakuita basa rokutsvaka nokuponesa.