連合 れんごう こく ぐん最高 さいこう司令 しれい かん そう司令 しれい だったら
rengō koku gun saikō shi reikan sō shire ibudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 連合国軍最高司令官総司令部

1. If/When it were the Supreme Commander of the Allied Forces General Headquarters:; ; If/When it had been the Supreme Commander of the Allied Forces General Headquarters:

Tara Conditional