Riley waxaa mar kale la geeyay Noumea, New Caledonia waxaana loo dalacsiiyay kornayl-ku-xigeen bishii August 1943. Waxaa loo wareejiyay shaqaalaha III Marine Amphibious Corps bishii Oktoobar ee sanadkaas wuxuuna u adeegay sidii kaaliye injineer iyo sarkaal fulineed oo ka tirsan qaybta injineerka intii lagu jiray ololihii Bougainville, Emirau
, Saipan iyo Guam.