This video says about itself:
25 March 2015
Translated from NOS TV in the Netherlands:
“This was bad bombing”
“Residents of the Yemeni capital Sanaa speak of the heaviest bombardments that they have ever experienced,” says correspondent Sander van Hoorn. The past few days Houthi rebels progressed in ever larger parts of the country. Saudi Arabia began therefore tonight, along with allies, a military operation in which some 150 bombings were carried out.
The support of the Americans, according to Van Hoorn, is more important. “They say they were aware of the operation. They do not actively participate in the bombing, but give, in their own words, information and logistical support.”
Already in 2009, the Saudi air force attacked Yemen.