The U.S. State Department says it generally presumes that U.S. citizens, even if they accept a foreign government post, want to keep their citizenship unless 'clearly and credibly' established otherwise.

Pope Leo XIV, the first American to head the global Catholic Church, pledged on Wednesday to make "every effort" for peace and offered the Vatican as a mediator in global conflicts, saying war was "never inevitable".

Pope Leo XIV expressed his willingness to take on the role of mediator in peace talks between the warring countries. Ukraine is grateful for such wise words, says Ukrainian President Volodymyr Zelenskyy.