Faransa ba ta yi tsammanin yaƙi a shekara ta 1914 ba, amma lokacin da ya zo a watan Agusta dukan al'ummar ƙasar sun yi taro cikin farin ciki na tsawon shekaru biyu.Ya ƙware wajen aika dakaru gaba akai-akai, sai dai an dakatar da shi ta hanyar manyan bindigogin Jamus, ramuka, shingen waya da bindigu, tare da munanan asarar rayuka.Duk da hasarar manyan gundumomin masana'antu Faransa ta samar da gagarumin yawan makaman da ke dauke da sojojin Faransa da na Amurka.A shekara ta 1917 sojojin sun kasance a kan gaɓar ɓarke , tare da fahimtar cewa yanzu Amurka ta juya zuwa mamaye layin Jamus.Amma sun yi taro sun yi galaba a kan babban harin Jamus, wanda ya zo a cikin bazara na 1918, sannan suka birgima kan mahara masu rugujewa.Nuwamba 1918 ya kawo girman girman kai da haɗin kai, da kuma neman ramuwar gayya mara iyaka.Ta shagaltu da matsalolin cikin gida, Faransa ba ta mai da hankali sosai kan manufofin ketare a cikin 1911-14, ko da yake ta tsawaita aikin soja zuwa shekaru uku daga masu adawa da gurguzu mai ƙarfi a shekara ta 1913. Rikicin Balkan da ke ci gaba da yaɗuwa cikin sauri na 1914 ya kama Faransa ba tare da sani ba. ya taka rawa kadan a zuwan
yakin duniya na daya .Rikicin Serbia ya haifar da sarkakiya na kawancen soji tsakanin kasashen Turai, wanda ya sa akasarin nahiyar, ciki har da Faransa, shiga yaki cikin 'yan makonni kadan.A karshen watan Yuli ne Ostiriya-Hungary ta shelanta yaki kan Serbia, lamarin da ya janyo hadakar Rasha.A ranar 1 ga Agusta duka
Jamus da Faransa sun ba da umarnin yin gangami.Jamus ta kasance mafi shirye-shiryen soja fiye da sauran ƙasashen da abin ya shafa, ciki har da Faransa.Daular Jamus, a matsayinta na kawancen Ostiriya, ta shelanta yaki da Rasha.Faransa na kawance da Rasha don haka a shirye take ta yi yaki da Daular Jamus.A ranar 3 ga Agusta Jamus ta ayyana yaki a kan Faransa, kuma ta aika da sojojinta ta Belgium mai tsaka-tsaki.Birtaniya ta shiga yakin ne a ranar 4 ga watan Agusta, kuma ta fara tura sojoji a ranar 7 ga watan Agusta.
Italiya , ko da yake tana da alaƙa da Jamus, ta kasance tsaka tsaki sannan ta shiga cikin Allies a 1915.Shirin "Schlieffen" na Jamus shine ya kayar da Faransanci cikin sauri.Sun kama Brussels, Belgium a ranar 20 ga Agusta kuma nan da nan sun kama wani yanki mai yawa na arewacin Faransa.Asalin shirin shi ne ci gaba da kudu maso yamma da kai hari
Paris daga yamma.A farkon watan Satumba suna cikin nisan kilomita 65 (mil 40) daga Paris, kuma gwamnatin Faransa ta koma Bordeaux.Ƙungiyoyin Ƙungiyoyi a ƙarshe sun dakatar da ci gaba a arewa maso gabashin Paris a kogin Marne (5-12 Satumba 1914).Yaƙin a yanzu ya zama mai ɗorewa - sanannen "Ƙungiyar Yammacin Turai" an yi yaƙi da shi sosai a Faransa kuma yana da ƙarancin motsi duk da manyan yaƙe-yaƙe da tashin hankali, sau da yawa tare da sabbin fasahohin soja masu lalata.A Gabashin Yamma, ƙananan ƙananan ramuka na farkon watannin farko sun girma cikin sauri da zurfi kuma suna daɗaɗaɗaɗaɗaɗaɗawa, sannu a hankali sun zama wurare masu faɗi na ayyukan tsaro masu tsaka-tsaki.Yaƙin ƙasa da sauri ya mamaye laka, mai zubar da jini na yaƙin Trench, wani nau'in yaƙi wanda duka sojojin da ke adawa da juna ke da layin tsaro.Yakin motsi ya rikide zuwa yakin matsayi.Babu wani bangare da ya ci gaba da yawa, amma bangarorin biyu sun yi asarar dubban daruruwan rayuka.Sojojin Jamus da Allied sun samar da ainihin madaidaitan layukan ramuka guda biyu daga kan iyakar Switzerland a kudu zuwa gabar Tekun Arewa na Belgium.A halin da ake ciki kuma, yankuna da dama na arewa maso gabashin Faransa sun shiga karkashin mummunan ikon Jamus mamaya.Yakin mahara ya yi galaba a Gabashin Yamma daga Satumba 1914 har zuwa Maris 1918. Shahararrun yaƙe-yaƙe a Faransa sun haɗa da Yaƙin Verdun (wanda ya shafe watanni 10 daga 21 ga Fabrairu zuwa 18 ga Disamba 1916), Yaƙin Somme (1 Yuli zuwa 18 ga Nuwamba 1916), da biyar. rikice-rikice daban-daban da ake kira Yaƙin Ypres (daga 1914 zuwa 1918).Bayan da aka kashe shugaban 'yan gurguzu Jean Jaurès, mai fafutuka a farkon yakin, kungiyar gurguzu ta Faransa ta yi watsi da matsayinta na yaki da 'yan ta'adda tare da shiga yakin kasa.Firayim Minista Rene Viviani ya yi kira da a hada kai-domin "Union Sacrée" ("Union Sacrée") -Wacce sulhun lokacin yaki ne tsakanin bangarorin dama da hagu da suka yi ta gwabza kazamin fada.Faransa tana da 'yan adawa kaɗan.Duk da haka, gajiyawar yaƙi ya kasance babban al'amari a shekara ta 1917, har ma ya kai ga sojoji.Sojojin sun hakura da kai hari;Mutiny wani abu ne kamar yadda sojoji suka ce ya fi dacewa a jira isowar miliyoyin Amurkawa.Sojojin sun yi zanga-zangar ba kawai rashin amfanin kai hari na gaba ta fuskar bindigogin Jamusawa ba, har ma da nakasa yanayi a fagen daga da na gida, musamman ganyayen da ba safai ba, da rashin abinci, da amfani da turawan mulkin mallaka na Afirka da Asiya a gida, da kuma yadda sojojin suka yi zanga-zangar. damuwa game da jin dadin matansu da 'ya'yansu.Bayan doke Rasha a shekara ta 1917, Jamus a yanzu za ta iya mai da hankali kan Yammacin Gabar Yamma, kuma ta shirya kai hari ga baki ɗaya a cikin bazara na 1918, amma dole ne ta yi hakan kafin sojojin Amurka da ke haɓaka cikin sauri su taka rawa.A cikin Maris 1918 Jamus ta kaddamar da hare-haren kuma a watan Mayu ta isa Marne kuma ta sake kusa da Paris.Koyaya, a cikin Yaƙin Marne na biyu (15 ga Yuli zuwa 6 ga Agusta 1918), layin Allied ya kasance.Allies sai suka koma ga farmaki.Jamusawa, saboda ƙarfafawa, sun mamaye kowace rana kuma babban kwamandan ya ga ba shi da bege.Ostiriya da Turkiyya sun rushe, kuma gwamnatin Kaiser ta fadi.Jamus ta sanya hannu kan "The Armistice" wanda ya kawo karshen yakin da aka yi a ranar 11 ga Nuwamba 1918, "sa'a goma sha ɗaya na rana ta sha ɗaya ga wata na sha ɗaya."