This revolt of Rome's allies (mostly Marsi and Samnites) could only be suppressed by the ample granting of Roman citizenship, as a result of which a large part of Italy became a relatively united political entity.
Bouchard, Elsa. "Italic War". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11387, accessed 20 April 2014.]