Saudi Arabia, struggles in Yemen have deep roots

RIYADH,  April  5 (Xinhua) — Saudi Arabia – In the two weeks since Saudi Arabia launched a bombing campaign in Yemen, the kingdom has barely slowed the advance of Shiite rebels who appear to be digging in for a long fight.

http://www.washingtonpost.com/world/middle_east/for-saudi-arabia-struggles-in-yemen-have-deep-roots/2015/04/04/0ca4065e-9414-4f57-8347-21c52ff6a194_story.html