What is phalanx definition?

A phalanx is a military formation that was developed and used by Ancient Greek armies. It typically consisted of heavily armored and armed infantry soldiers who would stand shoulder-to-shoulder in a tight formation, with their shields overlapping each other to create a protective wall. The soldiers in the phalanx were usually armed with long spears called sarissas and wore heavy armor made of bronze or leather. This formation was highly effective against enemy cavalry and infantry attacks, as it could withstand a significant amount of pressure and deliver a devastating blow to the enemy lines. The phalanx was used in battles such as the Battle of Marathon, Battle of Thermopylae, and the Battle of Leuctra. Today, the term “phalanx” is also used in modern military contexts to describe a formation of soldiers or weapons systems that operate in a tightly coordinated and effective manner.