2 sentences

1. 政府在战争爆发后开始在全国范围内征兵。

   zhèng​fǔ zài zhàn​zhēng bào​fā hòu kāi​shǐ zài quán​guó fàn​wéi nèi zhēng​bīng.

   The government began nationwide conscription after the war broke out.

   Source: Dong Chinese Dictionary

2. 由于人口老龄化，这个国家的征兵工作变得越来越困难。

   yóu​yú rén​kǒu lǎo​líng​huà, zhè​ge guó​jiā de zhēng​bīng gōng​zuò biàn de yuè​lái​yuè kùn​nan.

   Conscription has become increasingly difficult in this country due to its aging population.

   Source: Dong Chinese Dictionary