This period of history was later known as "reforming through antiquity" because these imitations were simply putting new wine into old bottles. They simply borrowed the name of an old system to implement new policies.
Take politics for example, the Republic of the Muro and the Republic of the United Provincials both call themselves republics, but they are entirely different matters.
The former was a noble republic; whereas the latter had slaughtered the nobility, creating a republic of the citizen class, with vast rural areas not included within the republic's jurisdiction.
In terms of the military, they also imitated the Muro Republic by establishing legions, adopting the structure of squads of ten, centuries, cohorts, and legions.
But now, with matchlock guns having become widespread, their formations aside, in terms of tactics, training, or the balance of melee and ranged weapons, the two are utterly different.
"How could our forces be so few?" Winters hurriedly asked.