In this photo provided by the Saudi Press Agency, Saudi King Salman delivers his first major policy speech since assuming the throne, in the al-Yamama palace, Riyadh, Saudi Arabia, Tuesday, March 10, 2015. Salman vowed continuity and progress despite low oil prices, and promised that the kingdom would play an important role defending Arab and Muslim causes around the world. The 79-year-old monarch stressed at the opening of his speech that the kingdom holds tight to its religious pillars and foundation. (AP Photo/SPA)
RIYADH, Saudi Arabia (AP) — Saudi King Salman vowed Tuesday that low oil prices would not halt progress in his country, and promised to defend Arab and Muslim causes around the world in his first major policy speech since assuming the throne.