What are you talking about? The Cuban missile crisis was resolved by the missiles being removed and the soviet military presence ended in Cuba.
You’re factually wrong when you seem to say the soviet missiles are still there. They were removed.
The US’s security interests demanded they were removed from the nearby Cuba, and US missiles that threatened the USSR were removed from Turkey.
Peace was achieved by withdrawing the military threat from each others borders.
Likewise peace in Ukraine can only be achieved if Russia doesn’t feel threatened by a NATO presence there.
It’s easy to understand.
Yes at one point Putin sought to join NATO and the idea didn’t gain traction.
I don’t understand how you feel this helps your argument.