日米 にちべい修好 しゅうこう通商 つうしょう条約 じょうやくなら
ni chibe ishū kō tsūshōjōyakunara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 日米修好通商条約

1. If/when the Japan-US Treaty of Amity and Commerce…

Nara Conditional