Help me bring my kids home

Hello, my name is Sara. I recently got laid off from a factory in Detroit. I am out of work, and I am asking for help to bring my four kids (American citizens) home from Yemen. My ex-husband unilaterally took them to Yemen without my permission. This is a kidnapping because I have full custody of them. I have tried contacting virtually all federal agencies to help me bring them back but they could not help due to the situation in Yemen.. I finally got into contact with them through the help of my ex-husband’s cousin. He is not able to help financially but reached out and gave me their contact info. He sees that they are suffering there. Yemen is under war right now. There is no proper food, no education, and no clean water. There is no longer an American embassy in Yemen. I am trying to get money to send them to the closest American embassy, Ethiopia, to renew their expired American passports and fly back to America. Please help me raise $3500 so they can escape this disastrous situation in Yemen and get back home to America to reunite with me their mother.