Veterans can obtain their DD214s via an online application process. I did it 3 years ago. Took 2 months to receive it.
I applied for mine in the early 70s, only to learn that mine was one of those destroyed in a fire at the St. Louis record center. I needed it to apply for a V.A. mortgage on a home.
Fortunately, they had a back up on microfiche in D.C. The whole process took about three months. When I couldn’t find that one later at age 62, I reapplied on line for another one, it took about ten days.
I’ve had to show it again since then, to Verizon, to get a discount on my phone bill, I found it without a problem that time.