Accordingly, as the army advanced to the banks, they maneuvered to form in order of battle, and prepared to continue their march as if there were no obstacle to oppose them. The general order of battle of the Macedonian army was this. There was a certain body of troops, armed and organized in a peculiar manner, called the Phalanx. This body was placed in the center. The men composing it were very heavily armed. They had shields upon the left arm, and they carried spears sixteen feet long, and pointed with iron, which they held firmly in their two hands, with the points projecting far before them. The men were arranged in lines, one behind the other, and all facing the enemy--sixteen lines, and a thousand in each line, or, as it is expressed in military phrase, a thousand in rank and sixteen in file, so that the phalanx contained sixteen thousand men.