On one side is a government-in-exile backed by Saudi Arabia, which in turn is an ally of the United States. On the other are the Houthi rebels, who also claim to be the legitimate government of Yemen. First, the fallout from the killing of journalist Jamal Khashoggi last year strained relations between Saudi Arabia and the rest. It led to demands for Europe and the U.S. to stop providing arms to Saudi Arabia, some of which are used in Yemen. Riyadh initially denied any knowledge of his disappearance before saying Khashoggi was killed after 'negotiations' to convince him to return to Saudi Arabia failed.
Source: Daily Mail June 13, 2019 07:56 UTC