Didn't you want to know about the Israeli-Palestinian conflict？
Then, shut up and listen!
Isn't it cool Marry?
Around 1900, The land of Palestine was changing in 2 important way. First, people that lived in Palestine, mostly Arabs, was not just calling themselves ethnic Arabs but Palestinian. Also they are mostly Muslims and Christians and small number of Jews.
Secondly, Not so far away from Europe, Jews were beginning to move into a action called Zionism, which said that Judaism is not just a Religon, but a Nationailty and deserve a nation of its own.
So in the first decade of the 20th century, tens and thousand of European Jews moved there from Europe.
After centuries of persecution, because of antisemitism, many any believed a Jewish state was there only way of safety and they saw their historic homeland (Palestinian) in the Middle East as there best hope of establishing it.