Rubuta ci gaba ga wannan sakin layi - Bayan tafiyarsa zuwa kasashen waje Roelfzema ya koma Jami'ar Leiden don ci gaba da karatunsa. Lokacin da yaki ya barke a Turai a watan Satumba, 1939, Roelfzema da abokan karatunsa sun ɗauka Holland za ta kasance tsaka tsaki kamar yadda ta yi a lokacin Yaƙin Duniya na Farko. Lokacin da Soviet Union ta mamaye
Finland a watan Nuwamba ya yi tafiya can don rufe rikici, yana aiki a matsayin wakilin yaki na, da kuma. Daga baya ya rubuta littafi game da shi, mai taken (The Smoldering Fire).