"Russia isn’t only bulking up its Arctic footprint for nefarious geopolitical gains against its former Cold War rival. “Their build up makes economic sense. It’s a key region for Russia’s economy, 20 percent of its GDP comes out of the Arctic,”
http://foreignpolicy.com/2017/05/03/u-s-coast-guard-chief-warns-of-russian-checkmate-in-arctic-military-high-north/
http://foreignpolicy.com/2017/05/03/u-s-coast-guard-chief-warns-of-russian-checkmate-in-arctic-military-high-north/