Final answer:
Phalanx formation is an ancient Greek military formation where soldiers stand shoulder-to-shoulder in rows, forming a human wall against enemies. It required intense training and was very effective in ancient warfare.
Step-by-step explanation:
The phalanx formation is a military formation first used in ancient Greece and widely known due to its usage by the Spartan Army. The formation involves soldiers standing shoulder to shoulder in rows, typically eight to sixteen deep. Armed with long spears and large shields, they formed a human wall against their enemy. It was highly effective in ancient warfare, often used as a crush tactic due to the tight packing and large shields that offered less exposure to enemy attacks. However, it required intense training and discipline to maintain the formation in battle
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