Ok, since there are too many here that only mention racist, opinionised and wrong events, I will explain it all free of opinion of any side. All that I write are historical facts.
Palestine was the name of the country between the Jordan river on the east, the Sinai desert on the south and the territory of Lebanon on the North. The name of the country came from the name of the ancient powerful nation that lived in it in the time of the Bible, Plishtim.
Through the history, the country was ruled by many differant empires troughout the ages like the Romans, the Bizanties, the Saracens, the Crusadersand, and the Ottoman empire. (and NOT just "ruled by Arabs for 1000 years" like some one before me said).
Until the year 1918, the country was ruled (for 400 years) by the Ottoman empire. In 1918, Britanny conquered Palestine and started ruling it as a Mandate (temporary government that is meant to prepare the land under its control for independant national government).
In the ending of the 19th century, the "Zionist organisation" was formed by European Jews, and, because of the wake of Jewish nationalism, started searching for territorial answers for "the problem of the Jews, a nation without a country". One of the answers was, very obviously, Palestine (also named Zion for Jerusalem), which Jews saw for centuries as their true land, where they were banished from, and dreamed of returning to. This started a great wave of immigration to Palestine, that increased troughout the beginning of the 20th century.
Unlike what someone here said, the Palastinians were NOT always a nation. In fact, for years in Palastine lived Arab peasants, almost all of them uneducated. They saw themselves as Arabs, muslims who lived in Palestine, and had no nationalistic identity.
If you want the truth, Palestini nationalism awakened only in the 1920's. This, is when more educated Palastini Arabs realised that the Jews are intending to take over Palestine (with the massive immigration and purchasing of land), and the Mufti (religious Muslim leader) Haj Amil el-Huseini decided to take action:
He declared that the Jews want to take over the el-Aktza mosque, immediatly gaining the support of Muslim countries and turning the nationalistic war into a religious war. That immediatly increased the anti-cemitism
in Arab countries.
The nationalistic struggle increased towards the 40's, and keeps going until today. However, the wake of Palestini nationality happened too late- when they started real fighting, there were more Jews in Palestine than Arabs.
I would like to add another fact: In 1947, there was a vote in the UN, and it was declared officially that in Palestine two states would be formed: A Jewish country, and an Arab country. A year later, a Jewish county called Israel was formed. However, a Palastinian country was not formed UNTIL TODAY, in spite of the fact they were given many opportunities to do so.
Also, about the six-day war: it is a terrible rude lie to claim that Israel was losing. In fact, the war was so well planned, that in the first day of war all of the Egyptian and Yardeneese airforce was destroyed. Israel did not want to go to this war, but the Arab countries were gaining too much power and put Israel in danger. Israel also tried convincing Jordan not to join, but it refused, losing many territories. The six day war was a complete defeat to Syria, Egypt and Jordan, and the USA had nothing to do with it.
Egypt and Syria, however, took revenge for their loss in 67 six years later, when they attacked Israel in 73, causing Israel great loses in men and millitary power. However, even this war, Israel managed to win.
I am not trying to take either one's side, all I am saying are facts, and the fact is: The Jews rule Israel now, while the Palastinians can't do anything about it. Nothing at all. True, Israel does not do anything it can to help the Palastinians, but take into account again the fat that the Jews formed a country long ago, while the Palastinians didn't.
Is it because they can't? No. It is only because they don't want to.