WITH its cloud of skirmishers in advance,
With now the sound of a single shot, snapping like a whip, and now an
irregular volley,
The swarming ranks press on and on, the dense brigades press on;
Glittering dimly, toiling under the sun--the dust-cover'd men,
In columns rise and fall to the undulations of the ground,
With artillery interspers'd--the wheels rumble, the horses sweat,
As the army corps advances.
Walt Whitman
http://www.poemhunter.com/poem/an-army-corps-on-the-march/
