Born in the USA lyric analysis

What can you infer to the first verse?

Born down in a dead man's town
The first kick I took was when I hit the ground
End up like a dog that's been beat too much
'Til you spend half your life just to cover it up now

what can you infer about what he sang about?

I had a brother at Khe Sanh
Fightin' off them Viet Cong
They're still there, he's all gone
He had a woman he loved in Saigon
I got a picture of him in her arms now

Down in the shadow of the penitentiary
Out by the gas fires of the refinery
I'm ten years burnin' down the road
Nowhere to run, ain't got nowhere to go