Quote Originally Posted by The Persian Cataphract
I usually frown upon these kind of threads; Statements such as "Seres/Thys is superior" or "Han-dynasty could easily crush Daxia", is originated from Chinese annals denoting both Parthian and Bactrian arms as "weak" using the Chinese military axioms as point of reference.
Indeed. Although, to be honest, I very much doubt that the phalanx would have any result other than the middle lands and the Southern Lands. Since those were basically the lands were the ground was mostly plain. Otherwise, in the North, West or Southwest, the ground was unlevel in many parts thus difficult for a phalanx to operate. As for Parthia, I'm not really sure whether they could stage a successful hypothetical invasion of China.