Ku dhammaystiro weedha soo socota: Inta lagu guda jiray Dagaalkii Koowaad iyo Labaad ee Adduunka waxaa dhacay ciyaaro badan oo saaxiibtinimo ah iyo tartamo aan tartan ahayn. Guud ahaan, 33 kulan ayaa lagu dhex ciyaaray kooxaha Wartime Leagues. Labaduba waxay soo bandhigeen kooxo aad u daciif ah oo da 'yarta ah, kaydka iyo kuwa aan xirfadlaha ahayn, iyagoo ciyaaray 14 kulan oo ka tirsan Isku darka London intii u dhaxeysay 1915 iyo 1919. West Ham ayaa badisay sagaal, Millwall saddex iyo laba ayaa barbaro ku dhamaatay. Dagaalkii Koowaad ee Adduunka ka dib, waxaa dib loogu soo celiyay Horyaalka Kubadda Cagta ee England oo ay soo bandhigtay Ururka Kubadda Cagta, West Ham waxay ku biirtay Horyaalka Labaad xilli ciyaareedkii 1919-20. Millwall wuxuu ku biiray Horyaalka Saddexaad ee furitaanka xilli ciyaareedkii 1920/21, ballaarinta Horyaalka Kubadda Cagta ee 44 naadi ilaa 66. Sanadkii 1926
shaqo joojin guud ayaa laga dareemay shaqaalaha agagaarka Royal Docks, oo badankoodu ahaayeen taageerayaasha West Ham. Sheeko aan la xaqiijin ayaa sheegeysa in shaqaalaha markabka ee Millwall-ta taageersan ee Isle of Dogs ay diideen inay taageeraan, iyagoo kicinaya caro. Waqtigaas, Millwall waxay horey uga guureen Isle of Dogs waxayna ka ciyaari jireen New Cross muddo 16 sano ah.