The violation of a provision essential to the accomplishment of the object or purpose of a treaty.

The juridical status of treaties.

A right arised for a third State from a provision of a treaty if the parties to the treaty intend the provision to accord that right to the third State.

Some favor or advantage given to someone in return for something they have done. 

The records of negotiations between the states participating in a treaty and, in some cases, the records of the work of independent bodies of experts.