Mezue ahịrịokwu na-esonụ: E guzobere British XXII Corps na France na Disemba 1917, site na ihe fọdụrụ na II ANZAC, ozugbo ndị otu Australia hapụrụ iji mepụta Corps Australia. N'ọnwa Julaị afọ 1918, e mezigharịrị nke ọma dị ka ndị agha nchekwa nke ndị Allied, site na mgbakwunye nke ngalaba anọ nke ndị agha Britain, nke 15th (Scottish) Division, nke 34th Division, nke 51st (Highland) Division na nke 62nd (West Riding). E debere ya n'okpuru iwu French na July 1918 tupu German "Friedensturm" (Udo Offensive). Ndị agha ahụ rụrụ ọrụ dị mkpa na "pinching-off" nke Soissons-Rheims salient (nke e guzobere site na
German "Bluecher" Offensive na ngwụcha Mee 1918) na Agha nke Abụọ nke Marne. Abụọ nkewa (nke iri na ise, nke iri atọ na anọ) so ndị agha nke iri nke France (Mangin) lụọ ọgụ megide Soissons "hinge", abụọ (51st, 62nd) na ndagwurugwu Ardre na ndị agha nke ise nke France (Berthelot) megide Rheims "hinge".