SA and UAE always choose US for security.
That's to be expected, after all they both rely heavily on US military hardware and servicemen for their security. But the fact that they've been pulling moves like UAE opting out of F-35 purchase for Huawei's 5G and working with both Russia and China on military cooperation, shows that the US influence over these two countries to have degraded such a degree, that they can no longer have to follow US every command and that they can afford using China and Russia as leverages against US to gain more concessions.
In the future, I expect further cooperation of both of those countries with China and Russia in many fields, especially military, in order to gain even more leverage against US to suck up more concessions. This is not a sustainable position for the US to be in.
