Nyorai kupfuurira kweiyi ndima - Pana 21 March 1918, Germany yakatanga Operation Michael
, kurwisa kukuru, vachishandisa nzira itsva. Kurwisa kweGermany kunoverengeka kwakatevera uye kwenguva yokutanga mumakore mana hondo yomumapako yakavhiringidzwa. Zvisinei, kufambira mberi kweGermany kwakakundikana kuwana budiriro yakakwana inodiwa nokuda kwomugumisiro unogumisa uye muna July maAllies akatanga Mazuva Ezana avo Okurwisa.