他于1964年加入空军，并在部队服役了十年。

He joined the air force in 1964 and spent ten years in the ___service.

所有35岁以下的男子被告知在三天内报到服兵役。

All men under thirty-five were told to report for military ___service within three days.

我的大多数家人都曾在军队服役。

Most of my family were in the ___services.