In numbers, military capacity, and martial ardour, the Samnites were at least a match for the Romans, their generals were possibly superior to those of Rome in ability; the Samnites won more victories than their adversaries in the open field. The Samnites’ farming communities perished through the defects of their political organisation; they could not make a breach in the solid fabric of the might of Rome, nor master the Roman fortresses, even though they might capture one now and again; while, thanks to her superior civilisation and the supplies of money, provisions, and war material furnished by the various cities within her territory, Rome was able to carry on war much more continuously than the Samnite farmer, whose armies could not remain in the field for more than a few weeks at a time, because, like the Peloponnesians in the war with Athens, their stock of provisions was exhausted and they were obliged to return home to till their land. In addition to this disadvantage, all their neighbouring tribes, the clans in the Abruzzi, the Apulians, and for a while even the Lucanians, took the part of Rome.
In spite of all their successes in the field the Samnites realised that they could not permanently withstand the Romans single-handed; they endeavoured to drag the other nations of Italy into the contest, and thus the long conflict took on the character of a decisive struggle for the sovereignty of Italy. Twice the Samnites succeeded in bringing about a great coalition; in 308 the Etruscans flung themselves upon Rome, in 295 the Samnite troops joined the hordes of the Celts in Umbria, while the Etruscans flew to arms once more. The Romans remained victors on both occasions, and the great battle of Sentinum in 295 decided the fate of Italy. When the war ended, in the year 290, Rome was the dominant power in Italy, and the submission of such portions of the country as still retained their independence was merely a matter of time. It was too late then for Tarentum to step into the breach and invoke the aid of Pyrrhus, king of Epirus, too late for the latter to resume the strife in the old spirit of the struggle of Greece against the Italians and Carthaginians. The particularist temper of the Greeks brought his successes to nought as soon as they were won; for all his superior ability as a commander, and though he defeated the Romans, he could not but recognise at once the superiority of their military system. Though he advanced to the frontiers of Latium and from afar saw the enemy’s capital at his feet, he could not shatter the framework of the Roman state, and he ultimately succumbed to the Romans on the battle-field of Beneventum (275).