commander-in-chief
/kəˌmɑːndərɪnˈtʃiːf/noun
(pl. commanders-in-ch-ief)
1- an officer in charge of all of the armed forces of a country, a major subdivision of them, or all its forces in a particular area总司令。
1.1
- a politician or head of state in supreme command of a country's armed forces（国家三军）最高统帅。