On his first trip to Cuba during his third term in office, Brazilian President Luiz Inacio Lula da Silva called the embargo imposed by the United States on the island "illegal" and denounced the island's inclusion on the list of state sponsors of terrorism.
It has a real human cost too, with many people dying as they cannot get the treatment/medication they need, holding a whole country in the past due to bitterness. I wish this was reversed, for the sake of the people whose futures are pointlessly held back.