 Nyora kupfuurira kweiyi ndima - Pashure pokuwa kweSingaporeuye kubhombwa kweDarwin muna February 1942, kukosha kweFremantle kwakawedzera, nokuva hwaro hukuru hwezvikepe zvapasi pegungwa muSouthern Hemisphere. Kubvira muna March 1942, ngarava dzeU.S. dzomumvura dzakatanga kusvika muFremantle, ichiva nzvimbo yechipiri inokosha zvikuru yeAllied submarine base, pashure pePearl Harbor, muHondo yePacific. 