 Nyorai kupfuurira kweiyi ndima - Muna 1916, Keeper akabatana neuto, uye akashanda kwemakore maviri muFrance. Akagamuchira The Military Medal nokuda kwezviito zvake paCambrai mukati meWWI. Muna 1917, Keeper akabatana naTom Longboat kukunda mukwikwidzi weAllied cross country pedyo neVimy Ridge. Longboat, Keeper, uye vamwe vatambi vomugwagwa murefu veFirst Nation A. Jamieson naJohn Nackaway vakashanda sevatakuri vekutumira 107th Pioneer Battalion. Kuwedzera kuMenduru yeMasoja, Keeper akagamuchira British War Medal uye Victory Medal. 