Destruction of the Athenian army in Sicily, an ambitious invasion that backfired catastrophically. Wikimedia
2. The Plan to Isolate Alkibiades Backfired on Athens in a Major Way
Rather than obey the summons to face trial in Athens, Alkibiades fled, and defected to Sparta. He advised the Spartans to adopt a strategy that led to the near-complete annihilation of Athens’ Sicilian expedition – the force he had organized, convinced Athens to send to Sicily, and whose men he had once led. It was the most catastrophic defeat suffered by Athens during the war. Of the tens of thousands of Athenians who took part, only a relative handful ever saw Athens again. Those not killed in combat or massacred afterward were enslaved, and sent to Sicilian quarries were they were worked to death.
Alkibiades also convinced the Spartans to abandon their strategy of marching into Athens’ home region of Attica each campaigning season, burning in looting, then retreating and repeating the cycle the following year. Instead, he had the Spartans establish a permanent fortified base in Attica, which allowed them to exert direct pressure on Athens year-round. He also went to Ionia, where he stirred up a revolt against Athens by her allies and subject cities in Asia Minor. However, Alkibiades was notoriously unable to keep it in his pants, and it backfired on him when he was caught in bed with the wife of Sparta’s King Agis II.
1. After Betraying Everybody, Alkibiades Went Down, and Took Athens With Him
Fleeing from Sparta, Alkibiades made a beeline for the Persians. He convinced them to adopt a strategy to prolong the war as long as possible, to keep Athens and Sparta too busy fighting each other to challenge Persia’s interests. Back in Athens, which was reeling from the string of catastrophes that Alkibiades had helped inflict upon his city, political turmoil led to an oligarchic coup. However, the Athenian fleet remained pro-democracy. Alkibiades stepped into the chaos and used his charisma to persuade the fleet to take him back. From 411 to 408 BC, he led the Athenian fleet in a dramatic recovery, winning a series of stunning victories that turned the war around.
Suddenly, it was Sparta that was reeling and on the verge of collapse. Alkibiades returned to Athens in 407 BC, and received a rapturous welcome. His earlier treasons were forgiven and temporarily forgotten, and he was given supreme command in conducting the war. However, the Athenians turned on him a few months later, after a minor naval defeat when he was absent from the fleet. He fled again, and having burned bridges with all sides, holed up in a fortified castle in Thrace, before fleeing even further away to Phrygia. A Spartan delegation traveled to Phrygia, and convinced its Persian governor to have Alkibiades murdered in 404 BC. That same year Athens finally collapsed beneath the load of disasters heaped upon it by Alkibiades, and surrendered.
_________________
Where Did We Find This Stuff? Some Sources and Further Reading