Jerusalem the capital
Jerusalem is not the capital of Israel because one president in one country want it to be so.
However, it’s of symbolic importance and will, backed with arms from the same president, encourage the occupation power to continue to colonize the remaining fragments of Palestine, knowing that no one in the world, at this moment, will challenge the United States at this point. Some ignorant people said before Trump become elected, that he is worse for US, but good for the world. Those people did not understand what they were talking about.
The Jerusalem agreement, still valid, the 1947 United Nations Partition Plan for Palestine is called Corpus Separatum, where Jerusalem neither is the capital of Israel nor of Palestine. According to the plan the city would be placed under international regime, conferring a special status due to its shared religious importance. However, due to the human kind primitive patriarchal character, those with money and arms rule those without money and weapons.