 The Battle of Roosevelt Ridge yakarwiwa pakati pa 21 Chikunguru na 14 Nyamavhuvhu 1943 pakati peUS nemauto eJapan munharaunda yeSalamaua yeTerritory yeNew Guinea panguva yeHondo Yenyika II. Hondo iyi yakarwiwa pamwe chete nedzimwe nhimbe dzeSalamauaLae. Mukati mehafu yokutanga ya1943, mauto eAustralia akanga arwisana nemaJapan akapoteredza Wauuye ipapo Mubo sezvavakanga vadzosera maJapan shure vakananga kuSalamaua. Sezvo hondo yacho yakanga yabudirira, vaJapan vakanga vaunza vashandi vanobva kune dzimwe nzvimbo muNew Guinea, vachinyatsoderedza varwi vavo, kunyanya pedyo neLae. Mushure mekurwa paLababia Ridge, maAustralia vakanga vatanga kuchengetedza nzvimbo dzakapoteredza Bobdubi, nechinangwa chekuwedzera kusvika kuGomo reTambu. 