He can only voice his displeasure about it but has no power to do anything else.
Herbert Hoover. He was the president of The People's Republic of Quebec before it was annexed by Canada
No.
Discontented, displeased, irritated and unhappy to name a few.
He was a born politician so he would served as a president in another country.
Not if they serve another country.
a treaty
If a country is governed by another country it becomes a colony.
That would be unlikely, perhaps if he had dual citizenship. But he would have to be a citizen of the country he was president of.
anything? no president! good question, but a country helps another, but not every need they have. it's too expensive for the country helping!
William Walker
Displeased Records was created in 1993.
The President makes an executive agreement with Another Country instead of a formal treaty