The latest lurches of US foreign policy in the Middle East region are bringing the Arab world and Central Asia closer together than they already were. Relations between Washington and Riyadh are not in good health and China, aware of this, has reached out to the Saudi kingdom to strengthen the union of the Gulf countries with the Central Asian region. Of all the members of the Shanghai Cooperation Organisation - Russia, China, India, Pakistan, Kazakhstan and other former Soviet republics - Riyadh, in a show of interest and support for the common cause of the Shanghai Cooperation Organisation, will proceed to improve relations with Iran, its biggest rival in the region and the region's second largest economic giant.