Kremlin: permanent U.S. military presence in Poland would harm European security

The Kremlin expressed concern on Monday over media reports that Poland has requested a permanent U.S. military presence on its soil, saying NATO's expansion towards Russia's borders undermined stability in Europe.Warsaw could offer up to $2 billion in funding for such a military presence, according to a Polish Defense Ministry proposal reported by Polish media.A government source in Poland confirmed to Reuters such a proposal had been made.