Last week Foreign Minister Julie Bishop gave a speech at the Sydney Institute that touched on the threat ISIS poses to 'the global rules based order', a threat in her opinion that is greater than any since World War II, including the rise of communism and the Cold War. 

Sam Roggeveen wrote on The Interpreter that the more appropriate frame of historical reference is not the height of the Cold War in the 1980s, but the earlier years of the late 1940s. Matthew Townsend-Hill said on Facebook that this may not be the best historical comparison either: