Their army could repatriate their bodies to locations that are within their own country and closer to their homes.
Whose army could “repatriate” the bodies?
Actually, many were never identified beyond their uniforms to tell which army they were in. Also, the origin of modern embalming practices came with the Civil War, when the authorities tried to get the hundreds of thousands of bodies back to their families.
They are within their country.
What country would that be? Lincoln didn’t recognize the CSA as a country, they were States in Rebellion. Maybe you missed that day in class. But then you appear to approve of what the taliban left is doing here.