太平 たいへい よう安全 あんぜん保障 ほしょう条約 じょうやくです
taiheiyō anzenhoshōjōyakudesu

Noun
Desu Copula

The polite form of 太平洋安全保障条約

1. Pacific Security Treaty; Treaty of Mutual Cooperation and Security between the United States and Japan

Polite