What is the cause of war in troy?

The war in Troy, famously depicted in Homer's "Iliad," was sparked by the abduction of Helen, the wife of Menelaus, king of Sparta, by Paris, a prince of Troy. This act of betrayal ignited a conflict as Menelaus sought to retrieve Helen, rallying a coalition of Greek city-states to launch an expedition against Troy. The war symbolizes themes of honor, love, and revenge, ultimately leading to a protracted siege that lasted for ten years.