Kammala wannan jumla: "Cochrane" an canja shi zuwa tashar Arewacin Amirka da West Indies a watan Nuwambar 1917, amma ya sake komawa 2nd Cruiser Squadron a farkon 1918. An kafa shi ne a Murmansk tsakanin Maris da Satumba 1918 a lokacin da Allied ya shiga cikin yakin basasa na Rasha. Ta kai sojojin Soviet zuwa Pechenga a ranar 3 ga Mayu don hana wani yunkuri da
White Finns don kwace garin. A ranar 14 ga Nuwamba 1918 ta makale a cikin Mersey Estuary, yayin da yake karkashin kulawar matukin jirgi, kuma daga baya ya rabu biyu, ya zama asara gaba ɗaya. An rushe wreck a cikin wuri a watan Yuni 1919.