He led a brigade in the Army of Northern Virginia.

He never again served in the Army of Northern Virginia.

Now the Army of Northern Virginia wasn't advancing any more.

But then, the Army of Northern Virginia always got the ammunition it needed, one way or another.

For the last two years, he had lived with the Army of Northern Virginia.

Nor were the guns alone in their flight from the Army of Northern Virginia.

The Army of Northern Virginia had always been able to fight.

He was an engineer for the Army of Northern Virginia.

The Army of Northern Virginia would never get their strength back.

As suggested by the title, he is primarily with the Army of Northern Virginia.