Final answer:
Odysseus's encounter with the Cicones after the Greeks leave Troy indicates that the Greeks were a warlike and aggressive people. They engaged in warfare and raided neighboring civilizations.
Step-by-step explanation:
Odysseus's encounter with the Cicones after the Greeks leave Troy indicates that the Greeks were a warlike and aggressive people. In Homer's epic poem, The Odyssey, Odysseus and his men attack the Cicones after leaving Troy and plunder their city. This demonstrates the Greeks' tendency to engage in warfare and raid neighboring civilizations.