2 sentences

1. 这两个邻国决定结盟以共同应对外部的威胁。

   zhè liǎng gè lín​guó jué​dìng jié​méng yǐ gòng​tóng yìng​duì wài​bù de wēi​xié.

   The two neighboring countries decided to form an alliance to jointly deal with external threats.

   Source: Dong Chinese Dictionary

2. 许多小企业通过结盟来提高在全球市场上的竞争力。

   xǔ​duō xiǎo qǐ​yè tōng​guò jié​méng lái tí​gāo zài quán​qiú shì​chǎng shàng de jìng​zhēng​lì.

   Many small businesses improve their competitiveness in the global market through alliances.

   Source: Dong Chinese Dictionary