On 1 February 1947, Margaret, Elizabeth, and their parents embarked on a state tour of Southern Africa. The three-month-long visit was Margaret's first visit abroad, and she later claimed that she remembered "every minute of it". Margaret's chaperone was Peter Townsend, the King's equerry and very firm toward Margaret, who he apparently considered an indulged child.
Soon after the Conference began, the US government learned that Luciano was in Cuba. Luciano had been publicly fraternizing with Sinatra as well as visiting numerous nightclubs, so his presence was no secret in Havana. The US started putting pressure on the Cuban government to expel him. On February 21, 1947, U.S. Narcotics Commissioner Harry J. Anslinger notified the Cubans that the US would block all shipment of narcotic prescription drugs while Luciano was there.