Fearing the retribution that the victorious Spartans might take on them, the Athenians resolved to hold out from the siege, but their cause was hopeless. Without a fleet to import grain from the Black Sea, and with the Spartan occupation of Deceleia cutting off land transportation, the Athenians were beginning to starve, and with people dying of hunger in the streets, the city surrendered in March 404 BC. The walls of the city were demolished, and a pro-Spartan oligarchic government was established (the so-called Thirty Tyrants' regime). The Spartan victory at Aegospotami marked the end of 27 years of war, placing Sparta in a position of complete dominance throughout the Greek world and establishing a political order that would last for more than thirty years.