 Complete the following phrase:  Campsa or Kampsa  was an ancient Greek polis city-state in the Chalcidice, ancient Macedonia. It is cited by Herodotus as one of the cities - together with Lipaxus, Combreia, Lisaea, Gigonus, Smila, Aeneia - located in the vicinity of the Thermaic Gulf, in a region called Crusis near the peninsula of Pallene where Xerxes recruited troops in his 