Ramba uchiverenga ndima iyi - Chikamu chokutanga chomunyika chinofanira kutumirwa mukupindura kurwiswa kwePearl Harbor, Chikamu chechi27 chakabva kuFort McClellan musi wa14 December 1941 kuenda kuCalifornia kunogadzira nzvimbo dzokuvharira kurwisa kuvhozhokerwa kwegungwa kunotarisirwa kumahombekombe okumaodzanyemba kwakadziva kumadokero kweUnited States. Vakazoendeswa kuPacific Theater of Operations ndokusvika kuHawaii, 21 May 1942, kuti vadzivirire zvitsuwa zvekunze kubva pakurwiswa kweamphibious. 165th Infantry uye 3rd Battalion, 105th Infantry yakatanga kuona chiito chakanangana nemuvengi panguva yekurwisa nekutora Makin Atoll muGilbert Islands, 21-24 Mbudzi 1943. Mabhatani 1 ne3 e106th Regiment akabatanidzwa mukurwisa Eniwetok Atoll
, 19<unk>26 February 1944, kudzokera kuOahu muna March. Munguva yebasa iri, 2nd Battalion, 106th Infantry yakasvika isina kushorwa paMajuro Island, 1 February, uye yakapedza kubata kwayo, 3 February. Chikamu chakatanga kugadzirira mabasa eMarianas, 15 March. PaD-day plus 1, 16 June 1944, zvikamu zvakadzika usiku paSaipan kutsigira Second uye Fourth Marine Divisions. Musoro wegungwa wakagadzwa uye Aslito Airfield yakatorwa, 18 June. Kurwisana kwakaramba kuchienderera mberi muna June wose. Marine General Holland Smith, asina kugutsikana nekushanda kwe27th Division, akasunungura mutungamiri wayo, Army General Ralph C. Smith., izvo zvakakonzera kutsamwa kwakatsamwa kubva kuvakuru vakuru vehondo, kusanganisira Army Chief of Staff George C. Marshall. Mukati mokurwisana, musi wa 7 Chikunguru, maJapan akakurira zvikamu zvechikamu mukurwisa kwebanzai, asi kurwisana kwakarongeka kwakapwanywa zuva rakatevera. Mukati memwedzi yaJuly naAugust, 27th yakachenesa homwe dziri dzoga mumakomo namawere eSaipan.