NATO has launched Operation Eastern Sentry with fresh troop deployments to Poland. This video explains what it means for the region.

Finland's Jaeger Brigade is training NATO soldiers on Arctic warfare and cold-weather survival. Business Insider observed the soldiers conduct an assault with snowmobiles, skis, and lasers. The ...

The deal that persuaded President Donald Trump to defuse an escalating crisis over Greenland paves the way for NATO to beef up security in the Arctic region and fend off any threat from Russia or ...