Pedzisa mutsara unotevera: Apo "I-4" yakanga iri paYokosuka, mushandirapamwe weAleutian Islands wakatanga musi wa 3<unk>4 June 1942 ne
Kurwisa kwemhepo kweJapan paDutch Harbor, Alaska, kwakakurumidza kuteverwa nekupinda kweJapan muAletuan Islands yeAttu musi wa5 Chikumi uye Kiska musi wa7 Chikumi 1942. Musi wa 10 Chikumi 1942, "I-1", "I-2", "I-3", "I-4", "I-5", "I-6", uye "I-7" vakagoverwa kuNorthern Force kuti vaite basa muAleutians, uye musi wa 11 Chikumi 1942 "I-4" yakaenda kumvura yeAleutian mukambani ne "I-1", "I-2", "I-3", uye "I-7" kuti vatange hondo yavo yechina yehondo. Pana 20 June 1942, "I-1", "I-2", uye "I-4" vakabatana ne"K" patrol line muNorth Pacific Ocean pakati peChitatu neChishanu. "I-4" yakaramba iri pamutsetse wokuronda kusvikira pana 3 July 1942. Musi wa 20 Chikunguru 1942, akaendeswa kuAdvance Force ndokurayirwa kuti adzokere kuJapan. Yakasvika paYokosuka musi wa1 Nyamavhuvhu 1942 ndokutanga kugadziridzwa.