Overseas real estate and other holdings was generally immune to that - in some cases you wouldn't even be able to hand it over to the occupying gov't if you wan

Overseas real estate and other holdings was generally immune to that - in some cases you wouldn't even be able to hand it over to the occupying gov't if you wanted to (since the country with the wealth was hostile to that occupying gov't), in other cases property seized that way was returned through legal means, again through the judiciary of the country where the assets reside, as any contract or transfer under duress is illegitimate and the transfer is reversible.