According to The Iliad, the Trojan War resulted from ?

According to Homer's masterpiece epic, the Iliad, the Trojan War began because Paris ran off with Helen, the wife of the Spartan king Menelaus. Previously, the goddess Aphrodite promised to give Paris--a Trojan prince-- the most beautiful woman on earth in return for declaring her the "fairest" of all the goddesses. Helen was the most beautiful woman on earth, and unfortunately for Menelaus, Paris met her when he traveled to Sparta on a diplomatic mission. Aphrodite kept her promise, and she caused Helen to fall in love with Paris and agree to run off with him to Troy.

This action outraged Menelaus; hospitality--required of both hosts and guests--was one of ancient Greece's most important social virtues. He called on the Greeks to invade Troy and help him regain Helen. Led by Menelaus' brother Agamemnon, the Greeks launched 1,000 ships against Troy and waged a decade-long war against the city.