Editing Ultra (cryptography) (section)

===Contribution to the Cold War===
[[Phillip Knightley]] suggests that Ultra may have contributed to the development of the [[Cold War]].{{sfn|Knightley|1986|pp=173–175}} The Soviets received disguised Ultra information, but the existence of Ultra itself was not disclosed by the western Allies. The Soviets, who had clues to Ultra's existence, possibly through [[Kim Philby]], [[John Cairncross]] and [[Anthony Blunt]],{{sfn|Knightley|1986|pp=173–175}} may thus have felt still more distrustful of their [[Allies of World War II|wartime partners]].

Debate continues on whether, had postwar political and military leaders been aware of Ultra's role in Allied victory in World War II, these leaders might have been less optimistic about post-World War II military involvements. [[Christopher Kasparek]] writes: "Had the... postwar governments of major powers realized ... how Allied victory in World War II had hung by a slender thread first spun by three mathematicians [Rejewski, Różycki, Zygalski] working on Enigma decryption for the general staff of a seemingly negligible power [Poland], they might have been more cautious in picking their own wars."<ref>Review of [[Michael Alfred Peszke]], ''The Polish Underground Army, the Western Allies, and the Failure of Strategic Unity in World War II'', 2005, in ''[[The Polish Review]]'', vol. L, no. 2, 2005, p. 241)</ref> A kindred point concerning postwar American triumphalism is made by British historian [[Max Hastings]], author of ''[[All Hell Let Loose|Inferno: The World at War, 1939–1945]]''.<ref>In a [[C-SPAN2]] "After WORDS" interview with [[Toby Harnden]], U.S. editor of London's ''[[Daily Telegraph]]'', broadcast 4 December 2011.</ref>