King Peter of Yugoslavia was still a teenager when he addressed the House in 1942. Speaker Sam Rayburn introduced the young ruler-in-exile, who urged support for guerilla resistance against the Nazis. World War II saw 11 “House receptions” of foreign dignitaries which, unlike Joint Meetings of Congress, did not include the Senate.
History, Art & Archives, U.S. House of Representatives, “King Peter of Yugoslavia Addresses the Congress,” https://history.house.gov/Collection/Listing/PA2012/PA2012-06-0001/ (September 21, 2021)
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