I’m not sold on this biowarfare article, looks like anachronistic political pandering. I’d previously read a claim that bubonic-infected rats were tossed over the wall using catapaults during some siege in ancient times, but A) AFAIK there’s no ancient descriptions of a bubonic plague outbreak, and B) while there’s no reason to doubt the observational capacity of earlier human societies, infections and disease were (according to documentation) attributed to demons and deities.
:’) In this case, the storm god? :’D
http://www.britannica.com/eb/topic-35872/Arnuwandas-III
A selection of articles discussing this topic.
conquest of Arzawa
...During the reign of the Hittite king Arnuwandas III (1220–1190 BC), Arzawa was seized by a disloyal Hittite vassal, Madduwattas; it was never recaptured by the Hittites and gradually lost its political identity.
succession of Mursilis II
Son of the great Hittite conqueror Suppiluliumas, Mursilis succeeded his father after the brief reign of his older brother Arnuwandas III. Mursilis renewed the allegiance of North Syria, particularly Carchemish (controlled by his brother Shar-Kushukh) and the kingdom of Amurru; he also conducted a successful campaign against the western kingdom of Arzawa, one of the main threats to the Hittite...
history of Hittite kingdom
Little is known about Arnuwandas III and Suppiluliumas II, who succeeded Tudhaliyas, and these final episodes in the saga of Hittite history are difficult to reconstruct. To the latter reign can be dated a maritime expedition, perhaps involving Cyprus, and the earliest Hieroglyphic Hittite inscriptions of any length. The Phrygian invasion of Asia Minor must already...