What was the strength and weakness of the Greek and Persian troops?

In the course of the Greco-Persian wars, it is very clearly visible how each side showed itself, thus, it is possible to highlight such strengths and weaknesses of the opponents.
Greeks.
Strengths: Tactical advantage and cohesion, fought on their own land;
weak: fragmentation and internal rivalry.
Persians.
Strong: large and experienced army;
weak: harsh conditions in the army, war on foreign territory, lack of experience of war with the Greeks.



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