How did Diocletian improve the military? He created local armies.
He changed the training.
He hired more mercenaries.
He modernized the weapons.

he changed the training

Explanation:

Diocletian created a new administrative system called the tetrarchy and increased the number of provinces, he also instituted the policy that Romans had to worship the emperor and state gods and established minimum wage.

julius caesar turned the roman republic into the roman empire by coming in and taking the "dictator" role during the time of a civil war (elites vs lower classes) winning battles and reputation, then declaring him dictator for life

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