Recently, I was watching Colonel Douglas McGregor on you tube, and he suggested eliminating the colonel rank in order to get younger men into the General officer ranks. I also note that Australia is no longer promoting anyone to the Staff Sergeant rank. This is being done in order to allow for a pri...

Looking on the new pages and updates at the Red Army 1917-1922
and Azerbaijan Red Army 1922-1924 these seem to me to be great examples of a generic rank insignia system.

Mr. Anderson, I'm intrigued by your inquiries concerning possible future new states and the rank insignia they might adopt.I've looked at three historical examples Biafra defeated, Eritrea victorious and Turkish northern Cyprus defacto existance. Biafra chose to closely follow the British example as...

My suggestion would be to use Royal Air Force style insignia for officers.
For other ranks would use U.S. Chevrons with arcs or bars.
no Warrant officers.