US as a sponsor of the Saudi war on Yemen

"Saudi Arabia has only been able to carry out the war in Yemen because of U.S. support. Since Obama entered office in 2009, his administration has offered more than $115 billion in arms deals and military support to Saudi Arabia — including more than $20 billion since 2015. In addition to the massive weapons sales, the U.S. has done more than 1,000 refueling sorties for Saudi planes, providing tens of millions of pounds of fuel. And U.S. officials have given targeting advice, sometimes while in the same room as Saudi military personnel." (thanks Amir)