https://www.aspistrategist.org.au/from-the-bookshelf-deterring-armageddon-a-biography-of-nato/
https://www.osce.org/library/14127?download=true
https://www.atlanticcouncil.org/blogs/ukrainealert/putins-new-ukraine-essay-reflects-imperial-ambitions/
https://www.foreignaffairs.com/articles/2020-01-21/imperial-presidency-alive-and-well?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=82321995