Probably to mitigate the way one mitigates against other disasters, such as natural disasters or political upheaval in a nation: have an exit plan to a partitioned cloud environment.

Since we're talking political consequences, the partitioning here would be political. Whatever nation owns the companies you do business with, find counterpart companies in nations on poor terms with those host nations and have a plan in place to ramp up infrastructure in those nations quickly (or keep it on "hot standby").

There is the risk that data migration could violate laws in the originating nation, if you're exfiltrating data that the host nation's laws don't allow to be exfiltrated.