What document is often required to verify a veteran's military service?

The correct response is rooted in the role of the DD Form 214, which serves as a key document in verifying a veteran's military service. This form is officially known as the Certificate of Release or Discharge from Active Duty and provides essential details regarding a service member’s time in active duty, including the character of discharge, which is crucial for accessing various veteran benefits. It is widely recognized by the Department of Veterans Affairs (VA) and other agencies as the primary evidence of a veteran's military service.

In contrast, the other forms listed have different purposes. VA Form 10-10EZ is typically used for applying for VA healthcare benefits, while SF-180 serves as a request for military records and is used to obtain copies of service records, but they do not act as the definitive proof of service. Form 22-1990 is primarily employed for applying for VA education benefits and does not serve as a document to verify service itself. Each of these forms plays an important role in the broader context of veteran services, but they do not fulfill the specific function of verifying military service like the DD Form 214 does.