たちかぜ がた護衛 ごえう かんであれば
tachikazegata goeukandeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of たちかぜ型護衛艦

1. If it were a Tachikaze-class destroyer; Were it a Tachikaze-class destroyer

Ba Conditional