Arab and Muslim countries on Wednesday sparked a wave of protests after Israeli Prime Minister Benjamin Netanyahu promised to apply sovereignty over the Jordan Valley and Dead Sea area if he is re-elected.
"The announcement constitutes a dangerous development and a new Israeli aggression," said Arab Foreign Ministers.
They also warned in a statement of "the ramifications of these dangerous, illegal and irresponsible movements," saying that "it would undermine the possibilities of progress in the peace process."
Officials of the Jordanian and Palestinian Authority said that any such measure runs the risk of "killing" and "destroying" the entire "peace process."
The president of the Jordan Chamber, Atef al-Tawarneh, went so far as to warn on Wednesday that any measure could even put the country's peace treaty with Israel, only one of the two with Israel's neighbors, "at stake ".
Damascus "strongly condemned" Netanyahu's vote, and a source from the Syrian foreign ministry told the state news agency SANA that it was an "expansionist" plan in "flagrant violation" of international treaties.
Saudi Arabia marked the announcement as a "dangerous escalation," and convened an "emergency meeting" of the Foreign Affairs Ministers of the 57 member states of the Organization for Islamic Cooperation (ICO) in Jeddah on Sunday to discuss the issue.
The Minister of Foreign Affairs of the United Arab Emirates, Abdullah bin Zayed al-Nahyan, denounced Netanyahu's proposal as "electoral exploitation in the most atrocious form", while the head of the Gulf Cooperation Council, Abdellatif al-Zayani, He described the rhetoric of the Israeli prime minister as a "dangerous and aggressive provocation." .
Beyond the Arab world, Turkey criticized Netanyahu's promise of "racist."
Ankara "will defend (the) rights and interests of our Palestinian brothers and sisters until the end," said Turkish Foreign Minister Mevlut Cavusoglu.
The United Nations said Netanyahu's plan would not have "international legal effect."
Meanwhile, the European Union said the promise undermines any "prospect of peace."
"The policy of construction and expansion of settlements … is illegal under international law and its continuation, and the actions taken in this context undermine the viability of the two-state solution and the prospects for lasting peace," said a EU spokesman in a statement.