Actually, it does mean they own it UN is the police of te world what they say goes.

The Israelites were living peacefully until the Palestinians wanted it back they didn't start the wars but they did win.

Islamic state doesn't make the rules that is like saying that your religion says to make big terrorist attacks so it is right.

This is hypocritical because when the settlers your ancestors moved to the US they did the same thing to the Indians and know you feel bad for the Palestinians.

The UN had all the right to give them that land because the Palestinians didn't actually own it they just lived in it.