veteran vs military personnel

veteran and military personnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
veteran	Yes	Yes	No	No
military personnel	Yes	No	No	No

As nouns, military personnel is a hypernym of veteran; that is, military personnel is a word with a broader meaning than veteran:

veteran: a person who has served in the armed forces
military personnel: someone who serves in the armed forces; a member of a military force

Other hypernyms of veteran include man, military man, serviceman.

As nouns, military personnel is a hypernym of veteran; that is, military personnel is a word with a broader meaning than veteran:

veteran: a serviceman who has seen considerable active service
military personnel: someone who serves in the armed forces; a member of a military force

Other hypernyms of veteran include man, military man, serviceman.

veteran (noun)	military personnel (noun)
an experienced person who has been through many battles; someone who has given long service	soldiers collectively
a person who has served in the armed forces	someone who serves in the armed forces; a member of a military force
a serviceman who has seen considerable active service

veteran (adjective)	military personnel (adjective)
rendered competent through trial and experience