WikiLeaks: U.S. Government Armed And Funded Yemeni Forces:
"The Obama administration has made 42 separate weapons deals with Yemen since 2009, totaling $115 billion, according to a September report from the Center for International Policy.
With Yemen sitting at an important “narrow choke point” for oil trade passing through the Middle East, the war in Yemen was largely strategic, Wikileaks said.
The State Department has warned Obama the U.S. would almost certainly be accused of committing war crimes in the Yemeni conflict by providing logistical and intelligence support to the Saudi-led coalition. The Obama administration has, nevertheless, approved $1.3 billion in arms sales to Saudi Arabia since 2015."