<prompt> Bhala okuqhubekayo kwalesi sigaba - Izenzo zango-30 Septhemba 4 Okthoba 1917 kwakuyi- German methodical counter-attacks ngesikhathi seMpi Yesithathu Ypres eFlanders, ngesikhathi seMpi Yezwe Yokuqala. Ukuhlaselwa okusheshayo yi-4th Army yaseJalimane ngesikhathi seMpi yeMenin Road Ridge  <response>: ngoSeptemba 20 ne-Battle of Polygon Wood ngoSeptemba 26, kwaba ukwehluleka okubizayo. Ngomhlaka 29 Septhemba, kwaqhutshwa ukubuyekeza eRoulers ngu-Erich Ludendorff the Quartermaster-General of the German Army, okulingana neBritish Chief of the General Staff nabaphathi be Army Group Rupprecht of Bavaria kanye nezikhulu ze-4th Army. 