Registration of a pending divorce can be very complicated, as many treaties dictate the registration process.  Registration is necessary to have the divorce recognized in the other country, as well as for purposes of dividing marital assets.  If the country you are dealing with is not a signatory to any governing treaty with the United States, then you must hire counsel in other countries to assist in your case.  Fortunately, international organizations composed of attorneys working together help facilitate a smoother process than you would encounter were you to decide to pursue the matter on your own.