MOSCOW (Reuters) - President Vladimir Putin said on Tuesday that Russia should step up its presence in the Arctic and challenge other nations in exploring the world's largest untapped natural reserves, days after it started shipping its first oil from the region.
Russia's ambitions in the Arctic have for some time been raising eyebrows among other states vying for a presence there, but the Kremlin's annexation of Ukraine's Crimea Peninsula is likely to put its Arctic plans under greater scrutiny.
