Ryszard Kukliński
Ryszard Jerzy Kukliński (June 13, 1930 – February 11, 2004) was a Polish Army colonel and Cold War spy for NATO. He was posthumously promoted to brigadier general by Polish President Andrzej Duda. Between 1972 and 1981 Kukliński passed top-secret Soviet documents to the CIA, including Soviet plans for the invasion of Western Europe.