Russia deploys S-400 missile system to Crimea

‘Russia has deployed a regiment of its advanced S-400 air defense missile system to Crimea as a dispute deepens between Moscow and Kiev over the security situation in the Black Sea peninsula.
Russian news agencies made the announcement on Friday, citing a statement from Russia’s Defense Ministry.
The ministry had earlier in the day announced that its navy would start to hold three-day military exercises in the Black Sea to practice repelling underwater attacks by saboteurs.’
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