There are limited exceptions to "res judicata" that allow a party to attack the validity of the original judgment, even outside of appeals. These exceptions—usually called collateral attacks—are typically based on procedural or jurisdictional issues, based not on the wisdom of the earlier court's decision but its authority or on the competence of the earlier court to issue that decision. A collateral attack is more likely to be available (and to succeed) in judicial systems with multiple jurisdictions, such as under federal governments, or when a domestic court is asked to enforce or recognise the judgment of a foreign court.