Israel has once again warned the government of Syrian President Bashar al - Assad of possible strikes.“If provocations by the Syrian government continue, Israel will have no choice but to respond accordingly,” Israel's ambassador to the United Nations Ron Prosor said during a UN Security Council meeting about the Middle East on Tuesday. Prosor repeated Western allegations that Syria possessed chemical weapons and that Israel could not tolerate it. “I have said it before and I'll say it again, Assad has chemical weapons,” he said. “The situation is made all the more dangerous by the fact that Assad has received advanced weapons systems that Israel simply cannot allow,” Prosor added. The Tel Aviv regime has launched attacks on Syria several times since the beginning of 2013. Israel has the biggest stockpile of weapons of mass destruction in the region and is the sole possessor of nuclear weapons in the Middle East. Syria has been gripped by deadly unrest since 2011. According to the UN, more than 90,000 people have been killed and millions of others displaced in the violence. Damascus says the chaos is being orchestrated from outside the country, and there are reports that a very large number of the militants are foreign nationals. The Syrian government says the West and its regional allies -- especially Qatar, Saudi Arabia, and Turkey -- are supporting the militants. The militants from a number of countries have been crossing into Syria to fight against the Syrian government, contributing to an international effort to destabilize the Arab country. Several international human rights organizations say the foreign-sponsored militants have committed war crimes in Syria. The Syrian troops have recently conducted successful clean-up operations across the country, inflicting heavy losses on the foreign-backed militants. The Syrian Army’s push against the militants rattled their foreign sponsors.