The Macedonian infantry phalanx is based on a file of sixteen. Sixteen men, one behind the other. Two files is a section. This is commanded by a Line Sergeant. Four files is a platoon, led by a lieutenant and a Flag Sergeant. A square is four platoons, sixteen-by-sixteen, 256 men. A brigade is six squares, 1,536. There are six brigades in Alexander’s army. In depth of sixteen, the phalanx’s front is above six hundred yards.
The enlisted commander of each platoon is a Flag Sergeant, so named for the pennant he mounts on the peak of his two-handed pike, his sarissa. His post is up front. Second in rank to him is a Lance Sergeant, or file-closer. He is called a “back.” He takes the rear. In many ways his job is more important than the Flag’s (also called a “First” or a “Top”) because his will drives the file forward, and any man who thinks of dropping back has to face him.
Third in rank in each file is the ninth man, a Sergeant or Lance Corporal. Why the ninth? Because when the command is given to “double front,” the file of sixteen divides into two half-files of eight, called litters, and the rear eight hastens up alongside the front eight. The ninth man becomes the first in the new file. By this evolution, the brigade has gone from roughly a hundred-man front, sixteen deep, to a two-hundred-man front, eight deep. Across the entire phalanx the front has expanded from six hundred to twelve hundred yards.
This configuration is how the Occupation Army trained at home, and how Alexander’s expeditionary force fought in the first three years of the Persian war, in its great conventional battles at the Granicus River, Issus, and Gaugamela.
In Afghanistan, we are now told, things will not be so simple. The place is all mountain and desert. You can’t use the phalanx there. The foe will not face it in pitched battle. Why should he? We would annihilate him if he did.
In the training at home with the eighteen-foot sarissa, a file had to be perfectly aligned front-to-back. Otherwise the formation would be tripping over its own feet. This was called advancing “on the axis.” The warrior virtue of being “on the axis” meant being sharp, obedient, never deviating. A good soldier was on the axis in everything he did.
Out east, we begin to see, there is no axis. The eighteen-foot sarissa has become the nine-foot half-pike; the phalanx exists on the parade ground only. Only two precepts remain: one, sacrifice everything in the cause of the main effort, and, two, never leave another Mack behind.
“Warfare out east,” our poet-sergeant Stephanos instructs us, “is of three types. In the plains, cavalry action. Against strongholds, siege warfare. In the mountains, mobile infantry.”
The fourth type of action was against villages. Our instructors didn’t tell us about that.