"Adjutant is a military appointment given to an officer who assists the commanding officer with unit administration, mostly the management of human resources in an army ...
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unit. The term adjudant is used in French-speaking armed forces as a non-commissioned officer rank similar to a staff sergeant or warrant officer but is not equivalent to the role or appointment of an adjutant.
An adjutant general is commander of an army´s administrative services." - (en.wikipedia.org 01.12.2021)