On January 10, 2022, the author, linguist, and historian Noam Chomsky addressed the question: Was Ukraine invited to become part of NATO - and who did the inviting and when. Chomsky speaks on the risk of Europe being subordinated to US NATO politics. After a lifetime teaching at MIT Chomsky is now Laureate Professor of Linguistics at the University of Arizona; and still active as philosopher, historian, and author.
On March 3, 2022, John Mearsheimer spoke on the topic of Putin's Invasion of Ukraine. NATO membership VS neutrality has become the most contested factor in the attempts to bring peace to Ukraine. However the history of the founding and subsequent expansion of NATO is redacted or unknown.
John Mearsheimer is Professor of Political Science at the University of Chicago, where he has taught since 1982. He has written extensively about security issues and international politics. He begins by asking - who caused the current crisis.