California divorce judgments are binding and enforceable within the United States under the Full Faith and Credit Clause of the U.S. Constitution and 28 U.S.C. Section 1738. However, when enforcement or recognition is sought abroad — for example, in the U.K., France, or Iran — the legal landscape changes entirely. Recognition becomes a matter of foreign law, not California law. International instruments (such as the Hague Conventions) and bilateral agreements (where they exist) play a cr…