The Convention for the Unification of certain rules relating to international carriage by air, commonly known as the Warsaw Convention, is an international convention which regulates liability for international carriage of persons, luggage, or goods performed by aircraft for reward. Wikipedia

Treaty Wikidata

An international treaty (full title: Convention for the Unification of Certain Rules Relating to International Carriage by Air, Signed at Warsaw on 12 October 1929) signed in Warsaw in 1929, covering international air travel, including such topics as ticketing, cargo and liability. Wiktionary

International treaty. Wiktionary (translation)