日露 にちろ和親 わしん条約 じょうやくだったら
ni chiro washinjōyakudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 日露和親条約

1. If it were the Japan-Russia Treaty of Amity; Had it been the Japan-Russia Treaty of Amity

Tara Conditional