Not exactly middle east but I just read about a joint military flight over the sea of Japan and East China Sea, with Chinese and Russian strategic (big/high altitude) bombers flying together. They said there was no unspoken motive, but clearly international 3D chess playing odd man out against the US, and challenging the next administration.
Japan, South Korea, and Taiwan allies got the message loud and clear. This is also Putin posturing to punch above his weight on the world stage by playing footsies with China.
Interesting, don't underestimate China. The partisian debate over whether Russia or China are the bad guys is a false choice. They both want to bury us, both are the bad guys.
JR