Your best case scenario is sometime in the future recovering them through the courts assuming there is a civilisation left and you are alive after diplomatic relations normalise.
You are wrong, never assume.
I posted on another thread. After Trump banned SMIC, I got a notification from Interactive Brokers that I can't no long open positions even the stock is trading in Hong Kong and Shanghai. I closed the positions at the end of that year with losses. Who can I sue? US Goverment or Trump personally?
He spoke of a broader picture, have another look. 