Why Rome\'s allies were so loyal?

[Matthius_Titus]

My answer would be fear. Hannibal had nothing to offer anyone if they joined whereas Roman allies were getting rich and had all the Romans could offer. Put it this way, If you were a barbarian or starving country and the romans came along and built you up and fed you and protected you would you join someone that was out to destroy that? This has been a lesson learned through out history where countries would side with one and then switch because they made a mistake. Romes allies rather be safe then sorry so they didn't want to chance it.