Lin Laden was a CIA operative. He was assassinated because the US did not want a trial, because he knew too much, (and that would be embarrassing to the US authorities and their allies the Saudis).
Of course I approve of peace (stupid question), but we have to have defence otherwise we leave ourselves wide open for all the nutters in the world to attack us !
There is no accurate record of what exactly Winston Churchill said at a particular meeting in 1954, because reporters were not allowed to attend. However, the commonest version of his words is, "To jaw-jaw is better than to war-war."
In other words, speaking to one's enemies is better than fighting them. Quite clearly, then he too was a bit of a peacenik, wasn't he?