*[[Sparta]] menyeru dan menjadi tuan rumah kepada persidangan [[Liga Peloponnese]]. Persidangan itu dihadiri oleh wakil-wakil Athens serta juga ahli-ahli Liga. Selepas alasan-alasan yang dikemukakan oleh [[Corinth]] terhadap [[Athens]], kebanyakan ahli Liga mengundi untuk mengisytiharkan bahawa Athens telah mematahkan keamanan.
*[[Sparta]] calls and hosts a conference of the [[Peloponnesian League]]. The conference is attended by Athenian representatives as well as members of the League. Following arguments by [[Corinth]] against [[Athens]], a majority of the League members vote to declare that the Athenians had broken the peace.
*The Athenian admiral, [[Phormio]], continueslaksamana theAthens, siegemeneruskan ofpengepungan [[Potidaea]] by blocking thedengan entrancemenyekat tojalan themasuk Gulfke ofTeluk Corinth. MeanwhilePada anwaktu Athenianyang fleetsama, ledsebuah byarmada Athens yang diketuai oleh [[Archestratus ofdari Athens |Archestratus]],sailsbelayar forke Potidaea. HoweverBagaimanapun, insteadsebagai ofganti attackinguntuk menyerang Potidaea, theymereka attackmenyerang theangkatan tentera laut [[Macedon|Macedonians]] underdi bawah [[Perdiccas II ofdari Macedon|Perdiccas]] whoyang havetelah alliedbersekutu withdengan the PotidaeansPotidaea. The AtheniansAthens capturemenawan [[Therma]] (modern [[Thessalonica]] kini) anddan thenkemudian go on to besiegemengepung [[Pydna]]. However,Semasa asmengepung thePydna, Atheniansangkatan aretentera besiegingAthens Pydna, they receivemenerima newsberita thatbahawa [[Corinth]] hastelah sentmenurunkan aseangkatan forcetentera underdi thebawah commandkuasa ofpemerintahan [[Aristeus]] tountuk supportmembantu Potidaea. InSebagai responsebalasan, Athens sendsmenurunkan morelebih troopsbanyak andaskar shipsdan underkapal thedi commandbawah ofkuasa pemerintahan [[Hipponicus]]. TheGabungan combinedtentera AthenianAthens forcebelayar sails toke Potidaea anddan landsmendarat theredi sana. In the ensuingDalam [[Battle ofPerang Potidaea]] yang menyusul, thetentera AtheniansAthens aremenewaskan victorious againsttentera Corinth and itsdan alliessekutu-sekutunya.
