Mezue ahịrịokwu na-esonụ: N'ọnwa Mee 1942, mgbe ahụ Lieutenant Shiga weghaara iwu nke ụgbọelu ụgbọelu "Jun'yō's" onye na-alụ ọgụ, post ọ nọ na ya ruo December 1942. N'oge a, Shiga duru ndị agha ụgbọelu ahụ n'agha nke
Ọdụ Ụgbọ Mmiri Dutch na agwaetiti Santa Cruz. N'agha nke ikpeazụ, ọ wakporo ndị na-ebu ụgbọelu US, na, nke mbụ mechara merụọ, ebe "Enterprise" merụrụ ahụ nke ukwuu. O mechara duzie ụgbọelu na-ebu ụgbọelu "Hiyō" site na Disemba 1942 ruo Jenụwarị 1943 mgbe ụgbọelu ahụ nọ n'ọdụ ụgbọ mmiri na Japan.