Originally Posted by
pattern_is_full
Richard - to use your analogy, it is like Poland requiring US citizens born in Poland to carry Polish passports to enter or stay in Poland. Even though they are now simply US citizens.
"No, no no - you still belong to us!"
From the US Embassy in Havana web site:
If those Polish citizens never renounced their citizenship, then yes, it's perfectly acceptable for poland to ignore their US citizenship.
Same thing for US citizens who might have gained other citizenships, the CBP will still make a large Hoo-Haa about it.