During the second half of the 5th century BC, the Romans and the Latins appear to have stemmed the tide. The sources record the founding of several Roman colonies during this era, while mention of wars against the Aequi and Volsci become less frequent. At about the same time Rome brought her ancient rivalry with the Etruscan city-state of Veii to a decisive end. In 426 BC Rome captured Fidenae, Veii's foothold on the southern side of the Tiber and in 396 BC Veii fell to Roman arms, supposedly after a ten-year siege. Rome annexed Veii's territory and enrolled her citizens as Roman citizens, significantly increasing Roman territory and manpower.