'I was just doing my job': Soviet officer who averted nuclear war dies at age 77 — RT News

I learned about this years ago. The dangers of the Cold War were very real, and in my view, this Soviet officer is almost certainly the greatest hero of the entire 20th century (or longer), and yet hardly anyone knows what he did. If you are alive today, this man is probably the reason why.
Even bearing in mind that RT.com is a Russian propaganda site, this is a good account.

'I was just doing my job': Soviet officer who averted nuclear war dies at age 77 — RT News