Joseph Walker died of natural causes in November at the age of 72.
Last week, the Central Texas State Veterans Cemetery announced that they didn't expect anyone to attend the Vietnam-era veteran's funeral.
Walker was then classified as an 'unaccompanied veteran' because he had no family or loved ones to come forward following his death.
'If you have the opportunity, please come out and attend,' the cemetery told its followers on social media. 'We do NOT leave Veterans behind.'
And on Monday, nearly 1,000 complete strangers did just that.
Video shared on the Texas General Land Office's Facebook page, showed veterans, members of the armed forces and families of the Killeen, Texas, community arriving to Walker's funeral.
Photos showed dozens of cars lining the road that led to the cemetery.
'Today we are not strangers. Today we are family. This is our brother, Joseph Walker,' Marc George of the Christian Motorcyclists Association said during the funeral.
'Like a lot of other vets, he signed a blank check for our nation,' George added.
Other images showed attendees carrying American flags as they listened to Walker's service.
George read off what little information he was able to find out about Walker, which included how long he served in the Air Force.
Walker served from 1964 to 1968, before receiving an honorable discharge.
He's believed to have a brother whose last known whereabouts was in Austin, Texas.
The Central Texas State Veterans Cemetery made sure to coordinate with the Fort Hood Casualty Office to ensure that Walker received full military honors.
The ceremony ended with a representative from the Veterans Land Board accepting the folded flag that was used during the service.