4 sentences

1. 两国签署了一项和平条约。

   liǎng guó qiān​shǔ le yī xiàng hé​píng tiáo​yuē.

   The two countries signed a peace treaty.

   Source: Dong Chinese Dictionary

2. 我打算发言支持和平条约。

   wǒ dǎ​suàn fā​yán zhī​chí hé​píng tiáo​yuē.

   I plan to speak in support of the peace treaty.

   Source: OpenSubtitles

3. 许多国家签署了不扩散核武器条约。

   xǔ​duō guó​jiā qiān​shǔ le bù kuò​sàn hé​wǔ​qì tiáo​yuē.

   Many countries have signed the Treaty on the Non-Proliferation of Nuclear Weapons.

   Source: Dong Chinese Dictionary

4. 历史上，两国曾在这里签定了停战条约。

   lì​shǐ shàng, liǎng guó céng zài zhè​lǐ qiān​dìng le tíng​zhàn tiáo​yuē.

   Historically, the two countries signed an armistice treaty here.

   Source: Dong Chinese Dictionary