CRS report – Saudi Arabia: Background and U.S. Relations, Christopher M. Blanchard Specialist in Middle Eastern Affairs, February 5, 2016.

“The kingdom of Saudi Arabia, ruled by the Al Saud family since its founding in 1932, wields significant global influence through its administration of the birthplace of the Islamic faith and by virtue of its large oil reserves. Close U.S. – Saudi official relations have survived a series of challenges since the 1940s. I n recent years, shared concerns over Sunni Islamist extremist terrorism and Iranian government policies have provided a renewed logic for continued strategic cooperation. Political upheaval and conflict in the Middle East and North Africa appear to have strained bilateral ties, but the full effect  has yet to be determined. Amid regional turmoil, Obama Administration officials have referred to the Saudi government as an important regional par tner, and U.S. arms sales and related security cooperation programs have continued with congressional oversight. Since October 2010, Congress has been notified of proposed sales to Saudi Arabia of fighter aircraft, helicopters, naval vessels, missile defense systems, missiles, bombs, armored vehicles, and related equipment and services, with a potential value of more than $100 billion. Since March 2015, the U.S.-trained Saudi military has used U.S. – origin weaponry, U.S. logistical assistance, and shared int elligence to carry out strikes in Yemen. Some Members of Congress have expressed skepticism about Saudi leaders’ commitment to combating extremism and the extent to which they share U.S. policy priorities.  Nevertheless,  U.S.-Saudi counterterrorism ties reportedly remain close, and Saudi forces have participated in some coalition strikes on Islamic State targets in Syria since 2014…”