Kammala jumla mai zuwa: A ranar 23 ga Mayu, 1915, Italiya ta shiga Yaƙin Duniya na ɗaya a gefen Allies tare da ayyana yaƙi da Austria-Hungary. A ranar 26 ga Mayu, 1915, an kirkiro rundunar farko ta Parasol, ta 2nd Artillery Squadron, wacce ke da kayan aiki shida. A watan Yunin 1915, an tura rundunar daga Pordenone zuwa Medeuzza, wani ƙauye a San Giovanni al Natisone a arewa maso gabashin Italiya, don ba da tallafin bindigogi ga Sojoji na Uku na Italiya yayin da suka yi yaƙi a cikin rami a Gorizia da kuma a kan Karst Plateau a lokacin yakin basasa.
Yaƙin farko na Isonzo. A cikin watanni masu zuwa, Parasols sun gudanar da ayyukan bincike da yawa har ma sun shiga cikin wasu hare-haren bam, tare da sakamako mara kyau. A ƙarshe an sanye da Parasols tare da mai watsa rediyo na Rouzet.