commander in chief | kəˈmandər in CHēf | (also Commander in Chief)

source: President Obama Awards Commander-in-Chief Trophy to Naval Academy -- Again | whitehouse.gov

noun (plural commanders in chief)

a head of state or officer in supreme command of a country's armed forces.: 国の軍隊の最高の指揮権を持つ国や将校の長

〖時にC- in C-〗(軍隊の)最高司令官; 〘陸軍〙 総指揮官; 〘海軍〙 司令長官(｟略｠ C in C)

an officer in charge of a major subdivision of a country's armed forces, or of its forces in a particular area.: 国の軍隊や特定のエリアの軍隊の主要な下位区分を担当する将官