Which preposition to use with hoplites

out Occurrences 1%

Out of twelve hundred horsemen, all among the rich men of the state, three hundred died of the epidemic; besides forty-four hundred hoplites out of the roll formally kept, and a number of the poorer population so great as to defy computation.

under Occurrences 1%

So frightful was the mortality that out of the four thousand hoplites under Agnon no fewer than one thousand and fifty died in the short space of forty days.

Which preposition to use with  hoplites