The past two weeks have seen an unprecedented rise in tensions between the two sides, which could lead to political and economic standoffs in the days and months to come. Several recent developments attest to this. Last week the Associated Press, well known for its connections to Washington decision-makers, confirmed that the Biden administration has withdrawn all its Patriot and (more sophisticated) THAAD air defence systems from the kingdom. ...

Then it was announced that a visit to the kingdom by US Defence Secretary Lloyd Austin – as part of a Gulf tour that included Qatar, Kuwait, and Bahrain — had been postponed or cancelled, ostensibly due to ‘scheduling issues’. That was an unprecedented snub reflecting official Saudi anger at the US.

A minor Saudi prince, Sattam Bin-Khaled Al Saud, was assigned to explain that it was Saudi Arabia that called off the visit. The ‘great kingdom’, he tweeted, would not be dictated to, and would only conduct relations on the basis of ‘shared interests and mutual respect’. No ruling family member has spoken about the US this way previously.

The young royal, who is close to Crown Prince Muhammad Bin-Salman, went on to contrast the cancellation of Austin’s visit with the very warm reception the kingdom accorded to Leonid Slutsky, head of the Russian Duma’s international affairs committee. This was intended as a warning to Washington that Riyadh potentially has an alternative ally in Moscow — a ‘brave’ but potentially risky and very costly challenge.