The Wall Street Journal reports: Saudi Arabia maintained a pointed silence Sunday on the new nuclear pact between world powers and Saudi Arabia’s top rival, Iran, while other Gulf and Arab states gave a cautious welcome to a deal hoped to ease tensions in a region bloodied by proxy battles between Shiite Iran and Sunni Arab states.

Saudi political commentators voiced persistent fears that Iran would now see itself as freed to advance on other, non-nuclear fronts against its Middle East rivals.

By early Monday in the Middle East, most of the region’s Muslim powers — Turkey, Egypt, and at least four of the six wealthy Arab Gulf countries — had issued statements expressing support for the deal. The United Arab Emirates., a commerce-minded nation that traditionally has thrived on doing business with both Iran and Arab states, welcomed the deal as one it hoped would protect the region “from the tension and danger of nuclear proliferation,” the emirates’ council of ministers said.

Saudi Arabia, the most powerful of the Arab states and the most intensely suspicious rival of Shiite Iran, made no public comment on the pact Sunday, and its foreign ministry didn’t return requests for comment. [Continue reading…]