Rubuta ci gaba don wannan sakin layi - A watan Yunin 1917, Battalion na 50 ya shiga cikin Yaƙin Messines; a watan da ya biyo baya, Jensen, yanzu dan sanda, an tura shi zuwa rukunin horo a Burtaniya. Ya koma ga rundunarsa a watan Oktoba, kuma an ba shi mukamin sa'a a watan Nuwamba. A watan Maris na shekarar 1918, an kaddamar da hare-haren bazara na Jamus, kuma Jensen ya yi yaƙi tare da rundunarsa a Dernancourt da Villers-Bretonneux
Ka yi haƙuri. Ba da daɗewa ba bayan yaƙe-yaƙe a Villers-Bretonneux, Jensen yana kan sintiri lokacin da ya sami mummunan rauni a kai, kuma aka kwashe shi zuwa Burtaniya, sannan aka sake shi zuwa Ostiraliya, inda aka sallame shi a Adelaide a ƙarshen yaƙin. Ya yi aiki a matsayin dillalin kantin sayar da kayayyaki kuma ya yi aure a 1921, amma ya mutu a shekara mai zuwa, ba tare da ya warke daga raunin yaƙin ba.