Rubuta ci gaba don wannan sakin layi - A cikin 1914, a lokacin Yaƙin Duniya na I, da farko rundunar ta kasance a cikin Rukunin 4 (Quetta) wanda ya kasance a Indiya, kan tsaro na ciki kuma a matsayin rukunin horo. An kafa bataliya ta biyu kuma duka an tura su zuwa ƙasashen waje kuma sun yi aiki a cikin Rukunin Indiya na 12 wanda ya yi yaƙi a Yaƙin Shaiba, Yaƙin Khafajiya da Yaƙin Nasiriya a Yaƙin Mesopotamiya. An kuma tura runduna biyu zuwa Tabriz, Iran a matsayin wani ɓangare na Norperforce. Na biyu bataliya kuma ya shiga cikin yaƙin Mesopotamiya tare da 14th Indian Division kuma ya yi yaƙi a Yaƙin Kut na biyu.
da kuma Fall of Baghdad (1917). Dukkanin bataliya biyu sun yi aiki a yakin Afghanistan na uku.