Remember what happened to those who really tried to make peace. King Hussein's father (King Abdullah), and more recently Anwar Sadat. They don't seem to live very long.

In the case of King Abdullah, and the fact that together with Israel, he killed the Palestinians' dreams of having an independent state, I guess it doesn't surprise me that he was killed. But in consideration of his betrayal of the Palestinians (and all of the bloody consequences of that decision), I don't think I would call him a "peace maker".

They don't seem to live very long

I find myself wondering what, exactly, your point is in saying this.