<prompt> Ngwala tšwetšopele ya serapa se - 2 Tswalo ya CER e latetšwe semmušo go 4th Field Company 4 Fd Coy Royal Australian Engineers, yeo e ilego ya godišwa ka dikgato tša mathomo tša Ntwa ya Pele ya Lefase. E biditšwego 7th Field Company 7 Fd Coy ka 1915, yuniti e be e tumile ka tirelo ya yona ka Fora le Belgium ka Ntwa ya Somme, Menin Road le ka Hindenburg Line. Nakong ya Ntwa ya II ya Lefase, 7 Fd Coy e ile ya lwa le Majapane kua Kokoda  <response>: le go Bougainville. 