Saudi Arabia’s stability is becoming fragile as the judgment and competence of Mohammed bin Salman, the young crown prince, are questioned. The kingdom has been stable since 1964, and there was a smooth transition when Salman became king in 2015. However, Prince Muqrin, next in the line of succession, was recently removed with no explanation, in favour of Mohammed bin Salman.  He has a track record of impulsive and reckless decisions at home and abroad, which call into question the kingdom’s future. The changes have alienated significant parts of the family. The crown prince’s signature initiative is the war in Yemen, now in its fourth year with no end in sight. The Royal Saudi Air Force has wrecked Yemen’s feeble infrastructure and attacked civilians. One observer said Yemen is now in a death channel. See The kingdom is unpredictable, and the Trump administration financially supports the Yemen war with a blank cheque.