U.S. President Barack Obama's recent trip to Alaska helped draw attention to global climate change — and to the national-security tensions that could result from a warming Arctic region.
Surveyors believe that the seabed under Arctic waters could contain hundreds of billions of barrels of untapped oil. As the North Pole becomes more accessible, and so more valuable, Arctic countries — each with its own and in some cases overlapping territorial claims — are getting ready for some serious competition.
The United States and Russia are geopolitical rivals and uneasy Arctic neighbors. More and more Russian and U.S. military forces are deploying on and under the Arctic Ocean.
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