Kammala wannan jumla: A ranar 21 ga Disamba, 1941, "Ro-33" ya tashi daga Cam Ranh Bay don fara aikinsa na farko na yaki, ya sanya wani yanki na aiki a cikin Tekun Kudancin China a gabashin Singapore don tallafawa
Harin da Japan ta kai Malaya ta Burtaniya. Rundunarsa ba ta da matsala, kuma ta bar yankinta na sintiri a ranar 5 ga Janairu 1942 don komawa Cam Ranh Bay, inda ta isa ranar 7 ga Janairu 1942.