Question: The roman army mutiny in 342 bc protected the cities against the samnites until when?

Context paragraphs:
Battle of Suessula: The Battle of Suessula was the third and last battle between the Samnites and the Roman Republic in 343 BC, the first year of the First Samnite War.  According to the Augustan historian Livy, the Samnites gathered their army at Suessula, at the eastern edge of Campania.  The Roman consul Marcus Valerius Corvus took his army by forced marches to Suessula.  When the Samnites had to scatter their army to forage for food, Valerius seized the opportunity to capture the Samnite camp and then rout the Samnite foragers.  Modern historians believe that details of the battle were entirely invented by Livy and his annalistic sources, and the battle's historicity has also been questioned.

Mutiny at Sucro: The Roman army's mutiny at Sucro, a no longer existing ancient fort in Spain, took place in early 206 BC, during the Roman conquest of Hispania in the Second Punic War against Carthage.  The mutineers had several grievances, including not having received the pay due to them and being under-supplied.  The proximate causes of the mutiny had existed for years, but had not been addressed to the soldiers' satisfaction.  Matters came to a head after rumors spread that their commanding general, Scipio Africanus, had become gravely ill.  But the stories proved to be without foundation; he succeeded in suppressing the mutiny and executed its ringleaders.

Philippopolis (Thracia): Philippopolis is one of the ancient names of the city of Plovdiv by which it was known for the most of its recorded history.  In 342 BC Philip II of Macedon conquered the Thracian town of Eumolpias and gave it his name.  Later, Philippopolis became part of the Roman empire and capital of the Roman province Thracia.  According to Ammianus Marcellinus, Philippopolis had a population of 100,000 people in the Roman period.

Roman army mutiny in 342 BC: Several ancient authors have written descriptions of a Roman army mutiny in 342 BC.  According to the most well-known version, the mutiny originated in a group of Roman garrison soldiers wintering in Campania to protect the cities there against the Samnites.  Subverted by the luxurious living of the Campanians, these soldiers conspired to take over their host cities.  When the conspiracy was discovered, the conspirators formed a rebel army and marched against Rome.  They were met by an army commanded by Marcus Valerius Corvus who had been nominated dictator to solve the crisis.  Rather than do battle, Corvus managed to end the mutiny by peaceful means.  All the mutineers received amnesty for their part in the rebellion and a series of laws were passed to address their political grievances.

Samnites: The Samnites were an ancient Italic people who lived in Samnium in south-central Italy.  They became involved in several wars with the Roman Republic until the 1st century BC.

Lucius Aemilius Mamercinus Privernas: Lucius Aemilius Mamercinus Privernas (Latin: "Lucius Aemilius L. f. L. n. Mamercinus Privernas" ) was a Roman statesman who served as the Consul in 341 and 329 BC, Magister Equitum in 342 BC, Dictator in 335 and 316 BC, and Interrex in 326 BC.

Pentri: The Pentri (Greek: Πέντροι ) were a tribe of the Samnites, and apparently one of the most important of the subdivisions of that nation.  According to Salmon, their name comes from the Celtic pen- <peak>.  Their capital city was Bovianum Undecumanorum (Livy ix.  31), modern Bojano, in the very heart of the Samnite territory, and it is therefore probable that they occupied the whole of that rugged and mountainous district which extends from the frontiers of Latium, in the valley of the Liris (modern Liri), to those of the Frentani, towards the Adriatic Sea.  But it is impossible to determine their exact limits, or to separate their history from that of the remaining Samnites.  It is probable, indeed, that, throughout the long wars of the Romans with the Samnites, the Pentri were the leading tribe of the latter people, and always took part in the war, whether specified or not.  The only occasion when we hear of their separating themselves from the rest of their countrymen, is during the Second Punic War, when we are told that all the other Samnites, except the Pentri, declared in favour of Hannibal after the battle of Cannae, 216 BC.  (Liv.  xxii.  61.)  This is the last occasion on which we find their name in history; all trace of the distinction between them and the other Samnites seems to have been subsequently lost, and their name is not even mentioned by Strabo or Pliny.

Battle of Saticula: The Battle of Saticula, 343 BC, was the second of three battles described by the Roman historian Livy (59 BC – AD 17), in Book Seven of his history of Rome, Ab Urbe Condita, as taking place in the first year of the First Samnite War.  According to Livy's extensive description, the Roman commander, the consul Aulus Cornelius Cossus was marching from Saticula (in southern Italy) when he was almost trapped by a Samnite army in a mountain pass.  His army was only saved because one of his military tribunes, Publius Decius Mus, led a small group of men to seize a hilltop, distracting the Samnites and allowing the consul to escape.  During the night Decius and his men were themselves able to escape.  The next day the reunited Romans attacked the Samnites and completely routed them.  Several other ancient authors also mention Decius' heroic acts.  Modern historians are however sceptical of the historical accuracy of Livy's account, and have in particular noted the similarities with how a military tribune is said to have saved Roman army in 258 BC during the First Punic War.

342 BC: Year 342 BC was a year of the pre-Julian Roman calendar.  At the time it was known as the Year of the Consulship of Ahala and Rutilus (or, less frequently, year 412 "Ab urbe condita").  The denomination 342 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Samnite Wars: The First, Second, and Third Samnite Wars (343–341 BC, 326–304 BC and 298–290 BC) were fought between the Roman Republic and the Samnites, who lived on a stretch of the Apennine Mountains to the south of Rome and the north of the Lucanians.  The first of these wars was the result of Rome's intervening to rescue the Campanian city of Capua from a Samnite attack.  The second one was the result of Rome's intervention in the politics of the city of Naples and developed into a contest over the control of much of central and southern Italy.  The third war also involved a struggle over the control of this part of Italy.  The wars extended over half a century and the peoples to the east, north and west of Samnium (land of the Samnites) as well as the peoples of central Italy north of Rome (the Etruscans, Umbrians and Picenti) and the Senone Gauls got involved to various degrees and at various points in time.  The Samnites were one of early Rome's most formidable rivals.

Supporting paragraphs: Roman army mutiny in 342 BC Samnites
Answer: until the 1st century BC