While China and Russia have grown closer militarily - and global defence analysts warn of even greater co-operation in the future - the Pentagon remains less than sanguine about a strong alliance forming between the two against the United States, which identified both as strategic competitors.
Speaking to reporters on 11 September at the Pentagon, US Defence Secretary Jim Mattis acknowledged recent co-operation between Russia and China in joint military drills, saying, "Nations act out of their interests."
However, he added, "I see little in the long term that aligns Russia and China."
Still, defence analysts noted that Russia and China have strengthened ties lately and there is much to indicate they will continue to grow even tighter in the near term.
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