State Kremlin Palace
The HSA-UWC also sent missionaries to Europe. They entered Czechoslovakia in 1968 and remained underground until the 1990s. Unification movement activity in South America began in the 1970s with missionary work. Later, the HSA-UWC made large investments in civic organizations and business projects, including an international newspaper. Starting in the 1990s, the HSA-UWC expanded in Russia and other former communist nations. Hak Ja Han, Moon's wife, made a radio broadcast to the nation from the State Kremlin Palace. As of 1994, the HSA-UWC had about 5,000 members in Russia. About 500 Russian students had been sent to USA to participate in 40-day workshops.