A veteran is someone who's done things before, and you usually enlist in the military. A good sentence would be "The veteran wanted to enlist again, but was too old."
A DD 214 is issued upon being discharged from the military. If you re-enlist later on, another will be issued on completion of that tour.
No
Enlist is already a verb. For example "to enlist in something" or "to enlist someone" is an action and therefore a verb.
To enlist in something again.
Disable those who are harassing the vet.
Typically a veteran dies of old age. But they can pass away due to the same things others die of. In some cases a veteran may die due to complications from injuries related to their service.
Listen and silent are both anagrams for enlist.
Yes, as long as you meet the eligibility requirements. See related link.
Novice is an antonym for veteran
Gomer Pyle USMC - 1964 To Re-enlist or Not to Re-enlist 3-22 is rated/received certificates of: Australia:G
Military loans are also called veteran loans. You can get information on these by going to the government website for all things Veteran related. You could also ask your local bank about special loans.