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Ukraine claims Russia is recruiting thousands of Cuban mercenaries to bolster its forces, with videos showing captured Cuban nationals on the front lines. Ukrainian officials estimate up to 20,000 Cubans have been lured by promises of substantial salaries and one-year contracts, exploiting poverty on the island. Some families report missing loved ones and no payments. The Cuban government denies involvement, stating it has cracked down on such recruitment. If numbers continue to rise, Cubans could become Russia's largest foreign troop contingent.

Prepared by Rachel Morgan and reviewed by editorial team.