I've studied Israel's wars for years, and honestly have forgotten far, far more about this than Joe Average will ever know.
pre-1948: The first Jewish settlers moved to Israel, bought crappy swampland and desert from the Arabs. They turned it into great farmland. The Arabs decided they wanted it back and, aided by anti-semitic British occupying forces, raided the Jews. The Jews fought back for their existence.
1948: Israel declares itself a country. Immediately, all their neighbours declare war on them and invade. Resident Palestinians move out under promises from their Arab brethren that once Israel is swiftly defeated, the Palestinians can move into the lands the Jews bought and built up. Now, we all know how that conflict ended. Too bad for the guys who left. They started it.
1948-1967: Israel lays an a$$-whuppin' on terrorists from neighbouring countries, particularly in the 1956 Sinai campaign. The Arab countries hide in the UN petticoats so they don't have to take their medicine for the trouble they stir up.
1967: Everyone around Israel decides to gang up and fight them. Israel sees what's going on, strikes first, wins the Six-Day War. They lay a pasting on Jordan, who entered the conflict after being begged by Golda Meir not to fight. Jordan and Israel were friendly at that point, but King Hussein made the wrong call. The war ends with more general petticoat-hiding and an astounding victory on Israel's part. More Arabs are displaced after losing a war that was their own fault.
1973: Sneak attack on Israel by neighbours starts poorly for the Jews, ends in another a$$-whuppin' and yet MORE petticoat-hiding - the Russians are especially embarrassed that their weaponry they gave to the Arabs proved so ineffective.
1973-now: Arabs are now stuck in little colonies, having nowhere else to go after losing all the wars they started. They have lots of kids and plot terrorist attacks, since there is nothing else to do. Periodically they push the Jews too far, at which point the Jews push back, do some more a$$-whuppin', which again ends in petticoat-hiding.
I fail to see how any of this is Israel's fault.
Let me also say that I know all Arabs/Palestinians are NOT terrorist or anti-Israeli. Some of them get along great with the Jews. Too bad that the other anti-social HAMAS types don't like this and have ruined it. I find it funny how everywhere else in the world, when a corrupt party wins an election, the UN and other ninnies are quick to stand up and parrot lines about cheating at the ballot box, yet when HAMAS is in charge, they are constantly trumpeted as being the elected leader of the people that we must all respect. Ha!
I could go on and on, but I'd rather end it here, if that's cool. Nobody is going to change their minds.