What history book are you reading?!!
You make it sound like giving up the Sudetenland was the Czechs' idea. They hated giving it up. Some in their government wanted to refuse to sign the Munich agreement. But the Brits and the French forced the Czechs to give up the Sudetenland for the greater good of world peace (supposedly).
Winston Churchill famously said afterward that the Czechs could have done better on their own--that they certainly could not have done worse.
What Sharon was saying is that Israel is not going to do worse vis-a-vis the terrorists than it could do on its own.
I am sorry to see this apparent dispute between the U.S. and Israel. But you can see why Israel would not want to commit national suicide just so we can keep Egypt and Saudi Arabia in our wonderful coalition.
They weren't "forced". They could have told the Brits and the French to f*ck off, they didn't have to sign the Munich agreement. That is my point. Israel needs to look after itself, and not rely on us to negotiate what is right for them. And most importantly, they should not, under any circumstance give up the good defensive terrain no matter what kind of agreement we push them towards.
I am not talking about the Sudentenland. I am talking about when Germany annexed Czechoslovakia proper.
What I am saying is that President Benes signed away his country's independence. There was no German invasion. The German acts may have been immoral and wrong but they were legal and there was no invasion.