Hague Protocol of 1955. The dispute was simple. A shipper was seeking to recover from an air carrier for loss of goods transported by international air freight. The legal issue, however, turned on something more esoteric -- whether the United States was a party to the Hague Protocol of 1955, which amended tthe Warsaw Convention of 1929. The Warsaw Convention is a multilaateral treaty that regulates, among other things, the liability for international air carriers. The District Court had held that United States has acceded to the Hague Protocol when it ratified Montreal Protocol No. 4 in 1998, but the Second Circuit held that the United States did not become a party to the Hague Protocol until after the Senate consented to the Protocol's ratification on July 31, 2003. The case was remanded to the District Court for further proceedings. The decision in Avero Belgium Insurance v. American Airlines, Inc. can be found on the Second Circuit website. When I get a more direct URL, I will post it.