Nyora kupfuurira kweiyi ndima - I41 yakasimuka kubva kuHawaii uye pana 17 December yakasvika paTarawa. Boka racho risati ragona kurwisa, zvisinei, matongo akaparirwa nokurwisana kuchangobva kuitika aifanira kubviswa uye nzira dzokubhururuka nadzo dzaifanira kugadziriswa. Mamiriro okunze akanga asina kunaka, kunonoka kwenguva pfupi, uye denga nechirwere chetsvo zvakabatana zvichiita kuti upenyu huve hwakaoma kuvarume veboka rechi41. Kurwisa kwaiwanzoitwa nevaJapan kwaiita kuti vanhu vangowedzera kuora mwoyo. Musi wa 28 Zvita, 820th Squadron yakatanga basa rekurwa reGroup nekurwisa zvivakwa zvemuchadenga zvitsva zvevavengi paMili Atoll muMarshall Islands. Mukati memwedzi waJanuary 1944 Boka racho rakaita hondo 215 dzokurwisa nzvimbo dzeJapan muMarshall Islands. Maloelap, Wotje, Mili, uye Jaluit zvakava zvakajairika kuvashandi veB-25. Zvitsuwa izvozvo zvaiva nenzvimbo dzomumhepo idzo maJapan aigona kupindira nadzo mukupinda kwakarongwa kweKwajalein neEniwetok
yakagadzwa nokuda kwaFebruary 1944. Mukurwisa kwakaderera, mabhomba epakati e41st akabudirira kurwisa zvivako zveJapan nemidziyo. Zvisinei, kudenha kwacho kwakava nemigumisiro yakaipa zvikuru. Vavengi, zvikurukuru pamusoro peMaloelap, vakanga vakaoma, uye pane dzimwe nguva varwi vechivengi vanosvika 50 vakasimuka kuti vapikise maumbirwo eGroup. Between 28 December uye 12 February boka akarasikirwa 17 B-25s.