Mursili II launches a campaign against the Kingdom of Azzi-Hayasa.

Mursili II was a king of the Hittite Empire c. 1330–1295 BC or 1321–1295 BC.

The possible solar eclipse mentioned in a text dating to the reign of Muršili II could be of great importance for the absolute chronology of the Hittite Empire within the chronology of the ancient Near East. The text records that in the tenth year of Mursili's reign, "the Sun gave a sign", just as the king was about to launch a campaign against the Kingdom of Hayasa-Azzi in north-eastern Anatolia.

Hayasa-Azzi or Azzi-Hayasa was a Late Bronze Age confederation in the Armenian Highlands and/or Pontic region of Asia Minor. The Hayasa-Azzi confederation was in conflict with the Hittite Empire in the 14th century BCE, leading up to the collapse of Hatti around 1190 BCE. It has long been thought that Hayasa-Azzi may have played a significant role in the ethnogenesis of Armenians.