Ramba uchinyora ndima iyi - Riley akabva aendeswazve kuNoumea, New Caledonia uye akasimudzirwa kuva lieutenant colonel muna August 1943. Akaendeswa kune vashandi veIII Marine Amphibious Corps muna Gumiguru wegore iroro uye akashanda semubatsiri weinjiniya uye mukuru mukuru weChikamu cheInjiniya panguva yemishandirapamwe kuBougainville, Emirau
, Saipan neGuam.