Final answer:
The "Judgment of Paris" sparked events that led to the Trojan War by causing a conflict over Helen of Troy, leading to a Greek expedition to bring her back and the subsequent war between the Greeks and the Trojans.
Step-by-step explanation:
The "Judgment of Paris" was a mythical event that sparked a series of events leading to the Trojan War. In the story, Paris, a shepherd and son of the King of Troy, was asked to judge a competition between Juno, Minerva, and Venus. Paris chose Venus as the winner because she promised him Helen of Troy as a reward.
This decision ignited a conflict as Helen was already married to Menelaus, the King of Sparta. When Menelaus discovered that Helen had been taken by Paris, he gathered a coalition of Greek kings and launched an expedition known as the Trojan War to bring her back.
The Judgment of Paris therefore set in motion the events that culminated in the long and devastating Trojan War between the Greeks and the Trojans.