Correspondence, memoranda, reports, orders, writings, photographs, motion picture film, and printed matter, relating to the naval forces of General Nikolay Yudenich during the Russian Civil War; the Russian refugee camp in Wünsdorf, Germany, in 1922; American military intelligence service activities, including the Baja Peninsula mission to investigate the possible establishment of a Japanese base in Mexico in 1942, and the Alsos mission to determine the status of German nuclear development in 1944-1945; and to allegations made in 1975 of the involvement of B. T. Pash with Central Intelligence Agency assassination plots. Pash was a Colonel, United States Army and a military intelligence officer.