..the Arab League. There is and still is no legal basis for them HAVING to declare Sovereign independence. Israel declared it's boundaries, what lay outside those boundaries was and still is NOT Israel. Because Israel was already in control of territories outside it's declared boundaries on May 14th 1948, it was IMPOSSIBLE for the Arab League to declare independence on behalf of the Palestinians over all their rightful territories.
Islamic State militants blow up ancient Arch of Triumph in Palmyra (Reuters)
from the article: Israel to UN: We reserve the right to stop Lebanon Gaza-bound flotilla