Who gets it: Rome, Roman Rebels (first civil war), Roman Rebels (second civil war) and The Roman Senate; once it fires it applies to all of them at once

Hail, Consul! Decades of brutal warfare against Samnites, Gauls, and Carthaginians have shown the need for further military innovations. In response to these challenges, our armies are now being armed with the large oval scutum, the armor-piercing pilum, and the Iberian gladius. Our legions stand ready to defend the Republic and secure Roman hegemony across the Mediterranean.

If you are playing Rome, Roman Rebels (first civil war), Roman Rebels (second civil war) or The Roman Senate: it fires when at least 71 settlements are held by Rome, Roman Rebels (first civil war), Roman Rebels (second civil war) and The Roman Senate between them.

The game checks this at the end of every round.

Opens the way to: The Gracchan Reforms.

9 units can be recruited once it fires:

Unit	Who can raise it
Equites (Polybian)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Hastati (Polybian)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Latin Cohort	any faction in its recruitment area
Principes (Polybian)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Socii Cavalry Extraordinarii	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Socii Cohort	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Socii Extraordinarii	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Triarii (Polybian)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Velites	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate

Units already in your armies are converted:

Before	After
Leves	Velites
Rorarii	Velites
Hastati (Early)	Hastati (Polybian)
Principes (Early)	Principes (Polybian)
Triarii (Early)	Triarii (Polybian)
Equites (Early)	Equites (Polybian)
Latin Hastati	Latin Cohort
Latin Principes	Socii Cohort
Latin Triarii	Socii Extraordinarii
Latin Equites	Socii Cavalry Extraordinarii

10 units can no longer be recruited:

Unit	Who can raise it
Equites (Early)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Hastati (Early)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Latin Equites	any faction in its recruitment area
Latin Hastati	any faction in its recruitment area
Latin Principes	any faction in its recruitment area
Latin Triarii	any faction in its recruitment area
Leves	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Principes (Early)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Rorarii	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate
Triarii (Early)	Rome, Roman Rebels (first civil war), Roman Rebels (second civil war), The Roman Senate