Here is another strategy I have just thought of. Seeing as out kids are being held in other countries and the countries are in violation of Hague we should sue them. But we can't sue another country,(yes it can be done) because how would we collect?

I will speak to my lawyer about suing the countries in Federal court here for the AID they receive from our government. Literally the same approach as Chris Smith's federal law. If a country does not follow the Hague Convention then I am sure we will be able to make a case to sue for their federal aid that is here in this county before they can receive it.
Brasil gets 3 Billion a year, we calculate how much to sue Brasil for from when Tim Weinsteins kids were taken and then also going forward.
Most countries that have been sued, Lybia, Iraq have lost but the judgement is normally symbolic because the countries were terrorist countries. But If sued a man who lived in Europe and he has assets here in the US then they can be seized. (I imagine a lot of countries also keep their sovereign gold store in the USA as well, to protect from theft and because of better laws here in the USA, so they do have assets here to seize.