3 sentences

1. 两国边境爆发了武装冲突。

   liǎng guó biān​jìng bào​fā le wǔ​zhuāng chōng​tū.

   An armed conflict broke out on the border between the two countries.

   Source: Dong Chinese Dictionary

2. 该地区的武装冲突已经持续了数年。

   gāi dì​qū de wǔ​zhuāng chōng​tū yǐ​jīng chí​xù le shù nián.

   The armed conflict in the region has lasted for several years.

   Source: Dong Chinese Dictionary

3. 两个邻国之间爆发了激烈的武装冲突。

   liǎng gè lín​guó zhī​jiān bào​fā le jī​liè de wǔ​zhuāng chōng​tū.

   A fierce armed conflict broke out between the two neighboring countries.

   Source: Dong Chinese Dictionary