Russia has sharply increased the number of troops and vehicles positioned on the eastern border of Ukraine in the past few days, raising fears of an invasion to stop the Ukrainian army’s recent advances against pro-Russian separatists.
Moscow has around 20,000 troops deployed in battle-ready formations on the border, according to senior Nato military officers – significantly more than the 15,000 US officials said were deployed there last week.
While the number is still well below the 40,000 Russian troops deployed near Ukraine in April, the sharp rise in just a few days has been a cause for significant concern among Western military powers.
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