Begun when Segesta asked the invaders for help against Selinus, and preceded by defacement of the invaders' holy statues, the herms, it included a harbor massacre during a lunar eclipse after Nicias replaced the recalled Alcibiades.
One force in this campaign built a series of walls called "The Circle," forcing their opponents to include a palisade-lined ditch in the second of three counter-walls near the field of Epipolae. A force in this campaign made a winter base in the town of Catana, and the losers were massacred attempting to cross the Assinarus river. Those losers surrendered to Gylippus a year after Lamachus's death. Begun when Segesta asked the invaders for help against Selinus, and preceded by defacement of the invaders' holy statues, the herms, it included a harbor massacre during a lunar eclipse after Nicias replaced the recalled Alcibiades. For 10 points, name this debacle for Athens in the Peloponnesian War, on an island containing Syracuse whose later history included namesake "Vespers" and the Mafia.
One force in this campaign built a series of walls called "The Circle," forcing their opponents to include a palisade-lined ditch in the second of three counter-walls near the field of Epipolae.
Sicilian Expedition [accept answers involving Athens's naval voyage to Sicily for military purposes; prompt on Siege of Syracuse before "Syracuse" is read; prompt on Peloponnesian War before "Segesta" is read]