化学 かがく兵器 へいき禁止 きんし条約 じょうやくだったら
kagakue iki kinshijōyakudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 化学兵器禁止条約

1. If/when the Chemical Weapons Convention…; Had the Chemical Weapons Convention been…

Tara Conditional