I see that the World Court has already declared that both the apartheid wall and settlements in the West Bank and East Jerusalem are illegal.

Israel has not signed on to the World Court and does not recognize its rulings. (Carol)

It seems to me that you use the same expression for two different institutions.

An attempt to clarify what you have muddled:

The "World Court" that has declared the wall illegal is the "International Court of Justice". All UN members (like Israel) are automatically parties of its statute which has not prevented many countries not to recognise the advisory opinions of the court in the past.

The "World Court" Israel and close to 100 others countries (including the USA) have not signed to yet is the "International Criminal Court".

Both courts BTW are seated in The Hague which makes the confusion understandable.

Wolfgang