I'm not a lawyer, and I do think this question needs a legal expert to answer it properly.\n\nOne word of caution though... divorce is a legal process and, in admitting she told a lie, your partner could be leaving herself open to charges of perjury, contempt of court etc. and the sort of coercion you mention is difficult to prove.\n\nI'm not sure if The Child Support Agency has any arrangements with the US, but it might be worth checking with them (despite the bad press they have). Otherwise I think your partner may have to accept she's been the victim of someone who knows how to use the system to his advantage and/or publicise her case to get support. It may be worth raising it with her MP too. \n\nIt's not justice, perhaps, but it's all we've got...