The President's "power of recognition" is the formal approval of a foreign country's government. Without the President's recognition, normal diplomatic relations and trade do not exist between two countries.
The Presidential power of foreign affairs is directly related to the power of recognition in that the President is the nation's chief diplomat to foreign countries. He receives ambassadors, foreign ministers and diplomatic representatives and sometimes attends international conferences. Furthermore, the power of recognition gives the President not only the power to receive foreign governments but also to refuse them, dismiss them, request their recall or determine their eligibility under the laws of the United States.