Assertion: empire's city | /r/HasProperty | free of macedonian garrisons
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Source sentences:
text: Forming an alliance with Ptolemy, Antigonus, and Lysimachus, Cassander had his officer Nicanor capture the Munichia fortress of Athens' port town Piraeus in defiance of Polyperchon's decree that Greek cities should be free of Macedonian garrisons, sparking the Second War of the Diadochi (319–315 BC).