Mezue ahịrịokwu na-esonụ: Mgbasa ozi nke Aleutian Islands malitere na 3-4 June 1942 na
Ndị Japan wakporo Dutch Harbour, Alaska, nke ndị Japan na-enweghị ihe ha mere na-esochi ngwa ngwa na Aleutian Islands nke Attu na 5 June na Kiska na 7 June 1942. N'ụbọchị iri na otu n'ọnwa Juun n'afọ 1942, "I-2" na "I-1", "I-3", "I-6", na "I-7" gawara mmiri Aleutian iji bido njem agha nke atọ ya. Na 20 June 1942, "I-1", "I-2", na "I-3" sonyeere akara patrol "K" na North Pacific Ocean n'etiti na. N'ịbụ onye a na-agbanye mmanụ site na mmanụ mmanụ na 24 June 1942, ọ nọgidere na patrol line ruo mgbe 3 July 1942. Na 17 Julaị 1942, ọ wakporo ụgbọ mmiri ndị ahịa Soviet a na-amaghị ama na South Dutch Harbor, mana ụgbọ mmiri ụgbọ mmiri US Navy PBY Catalina chụpụrụ ya. Na 20 Julaị 1942, e kenyere ya ọrụ na Advance Force ma nye ya iwu ka ọ laghachi Japan. Ọ bịarutere na Yokosuka na 1 Ọgọstụ 1942 ma rụzie ya ebe ahụ.