After the Civil War, hundreds of thousands of men were left suffering from war wounds, or were still afflicted by diseases contracted in the service. Most men were cared for by their families in 1868, but those without families, including many immigrant veterans, as well as the indigent, could find care at the national military asylums, similar in intent to the VA hopitals of the modern era. Here is a report on the work of the asylums in 1868:
New York Times Dec. 12, 1868 page 4
Not just physical rehab, services also included education and job training. Better than what we have today.