The man who saved the world

is this the guy who decided not to launch all the missles at the U.S in russia? idk

some context would be nice

If you're gonna give him credit for not pushing the button, there are hundreds of others to list.
American, Russians, British, Chinese.
Don't forget that the only way for someone to refuse to push the button is for someone else to be willng to push it.
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TLDR Dozens of people have saved the world in the ecaxt manner he did.

I think it was this guy who had orders to fire but didn't thinking the alarms he was hearing were in error, the were.

Maybe he's not the only one, but he it doesn't make it any less important that he stopped out annihilation. Thank you for not being a sheep.

Can you explain me please?

i think he is the guy that said no to fire the bombs at cuba, resulting a WW3

Is that the Russian in X Men First Class?