Dee ihe na-aga n'ihu na paragraf a - Ihe ndị mere na 30 Septemba <unk> 4 Ọktoba 1917 bụ usoro ndị German ji eme ihe (mmegide) n'oge Agha nke Atọ nke Ypres na Flanders, n'oge Agha Worldwa Mbụ. Ndị agha nke anọ nke ndị agha Germany na-eme ngwa ngwa n'oge Agha nke Menin Road Ridge
na 20 Septemba na Agha nke Polygon Wood na 26 Septemba, bụ ọdịda dị oke ọnụ. Na 29 Septemba, Erich Ludendorff (Quartermaster-General nke ndị agha German, nke ya na onye isi ndị isi ndị agha Britain) nwere nyocha na Roulers na ndị isi nke (Army Group Rupprecht nke Bavaria) na ndị isi ndị agha nke anọ.