Imperial Roman Army Formations

In the span of over 700 years of the Romantheir roman pilum pointing up at about a forty-five
Empire, perhaps the most important changes thatdegree angle. The line of men behind them placed
allowed for expansion and domination came whentheir shields on top of the first lines' at a slight
the imperial Roman army came into being. Hereslant. They would have their pilum ready to throw
are some of the new formations that theyat the approaching cavalry. This was very
implemented after the reforms.effective as horsed do not willingly charge into a
The Wedge was also a very important tacticsolid wall of shields and spear points.
used by the Romans. Small or large groups ofInstead, the horse would probably come to a halt
Legionnaires could form a triangle, and then usebefore the line, leaving the legionnaires free to
the point to break and open a hole in the enemy'sthrow their pilum and massacre the enemy.The
lines. Troops inside the triangle would also helplast tactical arrangement was called the Orb, and
reinforce and effectively create a solid "spearwas used as a last stance defensive formation. If
point" to breach the enemy. It was veryany number of soldiers was separated from the
important in battles to be able to disrupt andrest of the army, or else they became
break enemy formations, for it could very well besurrounded by the enemy, they would form a
the difference between victory and defeat.Atight circle with officers and archers in the center
skirmishing formation was also a very effectiveand legionnaires on the outside. This required a
tactic implemented by the Romans. The normallyhighly trained and disciplined army at the individual
tight lines of men would space and staggerlevel, as this was formation often took place with
themselves to effectively increase the apparenta small group of soldiers during the heat of
size of the unit, sometimes covering as much asbattle.The equipment and armor saw very
twice the space as a normal cohort would. Thisimportant upgrades. They used segemented
tactic was very useful when they need to makearmor, called lorica segmentata, roman helmets
quick attacks and retreats, or when marchingsaw a total overhaul that allowed for more
over rough terrain. It also let friendly troops falleffective protection, and their weapons were
back easily through the lines if needed.altered to be more effective. But perhaps the
The repel cavalry stance was extremelysome of the most important changes came in the
effective and devastating to enemy cavalry. Thisform of new battle formations that made the
only required two lines of men. The first line ofRoman war machine so affective. In the following
soldiers would kneel down and interlock their largeparagraphs we will explore some of these tactics.
scutum shields to form an impenetrable wall with