This primary source comes from the Collection RR-WHCA: Records of the White House Communications Agency (WHCA) (Reagan Administration).
National Archives Identifier:
7450183Full Citation: President Ronald Reagan's Address to the Nation on National Security ; 2/26/1986; Presidential Audio Recordings, 1/20/1981 - 1/20/1989; Collection RR-WHCA: Records of the White House Communications Agency (WHCA) (Reagan Administration); National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/address-national-security, April 29, 2024]