A budding alliance between Russia and China is bringing the Eurasian giants closer together than at any time since the Sino-Soviet split in 1954.

Perceived weakness in both Europe and the United States has created a power vacuum that Moscow and Beijing are willing and eager to fill, even if for short-term objectives. If the new relationship evolves into a grand alliance, it would be the most significant geopolitical shift since the breakup of the Soviet Union in 1991.

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