日米 にちべい和親 わしん条約 じょうやくであれば
ni chibe iwashin jōyakudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 日米和親条約

1. If the Treaty of Peace and Amity between Japan and the US; Were the Treaty of Peace and Amity between Japan and the US

Ba Conditional