Pedzisa mutsara unotevera: 2 CER's lineage is formally traced to 4th Field Company (4 Fd Coy) Royal Australian Engineers, which was raised in the early stages of World War I. Yakatumidzwa zita rekuti 7th Field Company (7 Fd Coy) muna 1915, chikwata ichi chaive chakakurumbira nekuda kwebasa rayo muFrance neBelgium muhondo yeSomme, Menin Road uye paHindenburg Line. Mukati meHondo yeNyika II, 7 Fd Coy vakarwa navaJapan pa
Kokoda uye paBougainville.