Forrer's work was primarily motivated by linguistic similarities, since "Wilusa" and the associated placename "Taruisa" show striking parallels to the Greek names "Wilios" and "Troia" respectively.
Subsequent research on Hittite geography has lent these identifications additional support and they are now generally accepted by scholars, though they are not regarded as firmly established.
[4] Wilusa first appears in the historical record around 1400 BC, when it was one of the twenty-two states of the Assuwa Confederation which formed in an unsuccessful attempt to oppose the Hittite Empire.
For instance, a Mycenaean-style sword found at Hattusa bears an inscription suggesting that it was taken from an Assuwan soldier and left as an offering to the Hittite storm god.
Evidence against this interpretation includes a section divider in the Manapa-Tarhunta letter which seems to suggest that Piyamaradu's activities and the Wilusa event were separate topics.
The letter does not specify how Walmu was deposed, though its discussion of the geopolitical situation in western Anatolia makes clear that the Ahhiyawa were no longer a major power.
Noted Hittiteologist Trevor Bryce cautions that our current understanding of Wilusa's history does not provide evidence for there having been an actual Trojan War since "the less material one has, the more easily it can be manipulated to fit whatever conclusion one wishes to come up with".