[138] In Western Switzerland. Caesar had finally subdued them in 58 b.c.
[139] This had happened before Caecina's arrival. Vindonissa, their head-quarters (chap. [61], note [123]), was on the borders of the Helvetii.
[140] Aquae Helvetiorum or Vicus Aquensis, about 16 miles NW. of Zurich.
[141] Volunteers, not conscripts.
[142] Mount Vocetius.
[143] Avenches.
[144] Avenches.
[145] Vespasian made it a Latin colony.
[146] Probably raised by C. Silius, who was Governor of Upper Germany under Tiberius. Troops of auxiliary horse were usually named either after the governor of the province who first organized the troop or after the country where it had first been stationed, or where it had won fame.
[147] Ivrea.