Daga Yuni zuwa Maris 1957, jirgin ya yi aiki daga Norfolk da kuma ta hanyar Caribbean. A ranar 14 ga Maris, Canberra ya ba da Shugaba Dwight D. Eisenhower zuwa Bermuda don taron tare da Harold Macmillan, Firayim Ministan Birtaniya. A ranar 12 ga Yuni, jirgin ya yi aiki a matsayin jirgin ruwa na nazarin kasa da kasa na Naval Review a Hampton Roads. Bayan horo a watan Yuli da Agusta, Canberra ya tura zuwa Bahar Rum don NATO Operation Strikeback. Tambaya: Wanene shugaban a lokacin?
Dwight D. Eisenhower