The Battle of Lyncestis/Lynkestis/Lyncus took place in 423 BC between the allied forces of the Lyncestians and Illyrians against those of the Spartans and Macedonians. The battle was part of the wider Peloponnesian Wars. Before Athens suffered defeat at Delium in 424 BC, Sparta had sent an expedition under Brasidas to assist Perdiccas of Macedonia and other opponents of Athens. At first Sparta avoided involvement in Macedon's war with Arrhabaeus, but in 423 BC they joined an expedition which ended with retreat by the Macedonians and a brilliantly contrived escape of the Spartans.