兵役

1. Origins, structure, and basic meaning

• Structure: 兵役(へいえき) refers to military service or the obligation to perform it.
• Basic usage: It states that historical records describe the military service system of that time.
  • 歴史資料には当時の兵役制度が記されている。

2. Common pitfalls and similar expressions

• Service and entering the military
  • 兵役を終える means to finish military service. 入隊(にゅうたい) denotes entering the military, rather than the whole period of service.