There are some who think all Jews wanted to create the nation of Israel after the horrific events of WWII. They did not. Talk to any Jew who lived during those times, and they'll tell you stories about how conservative Hasidic Jews wanted to wait patiently for the "true messiah" to return them to their homeland, but liberal Zionist Jews wanted to take back their homeland by force -- Britain and America sided with Zionists.
There are some who think that Israel has always been a peaceful nation. It has not been. Since Israel's formation in 1948, Israelis and Palestinians have been killing one another, and Palestinian casualties have always been far greater than Israeli casualties.
But don't take my word for it. Take a look at a few of these examples...
Both Palestine and Israel have used cowardly, underhanded tactics to attack and kill non-military innocents. Hamas is just as bloodthirsty as Israeli extremists. Sometimes a group of Palestinians get particularly bloodthirsty and Israel reacts in self-defense, and sometimes the opposite happens. Both sides have repeatedly violated international treaties and cease-fire agreements. Nobody has clean hands. Nevertheless, I hope that I see peace in my lifetime and I hope that humanitarian aid continues to flow into the area to stem the constant flow of lives lost.