Within NATO rank structure, all branches (navy included) are referred to as general officers. In the United States, General Officers authorized to display a flag showing their rank are also called "flag officers". Refer: "Flag officer". Merriam-Webster. Archived from the original on September 10, 2012.[permanent dead link]. In other usages the term "flag officer" usually applies to naval ranks such as admiral, vice-admiral, or rear-admiral.
mdn.dz
"Ranks". mdn.dz (in French). Ministry of National Defence (Algeria). Retrieved 30 May 2021.
merriam-webster.com
Within NATO rank structure, all branches (navy included) are referred to as general officers. In the United States, General Officers authorized to display a flag showing their rank are also called "flag officers". Refer: "Flag officer". Merriam-Webster. Archived from the original on September 10, 2012.[permanent dead link]. In other usages the term "flag officer" usually applies to naval ranks such as admiral, vice-admiral, or rear-admiral.