Nyorai kupfuurira kweiyi ndima - Pana December 21, 1941, "Ro-33" yakabva kuCam Ranh Bay kuti itange kutenderera kwayo yokutanga yehondo, yakagoverwa nzvimbo inoshanda muSouth China Sea kumabvazuva kweSingapore mukutsigira kupinda kweJapan
weBritish Malaya. Rwendo rwake rwakanga rwusina njodzi, uye akabva panzvimbo yake yepatrol musi wa 5 January 1942 kuti adzokere kuCam Ranh Bay, kwaakasvika musi wa 7 January 1942.