Russian intimidation of its Baltic sea neighbors is accelerating their cooperation. Sweden is now considering taking part in NATO's joint expeditionary force. This would deploy in response to any Russian provocation in Estonia, Latvia and Lithuania, the alliance's most vulnerable members.
Russia's War Against Ukraine
The Daily Beast: Russia’s driving the Nordics into NATO
A US F-15 fighter jet is parked on the tarmac of the Leeuwarden Airbase during NATO's annual Frisian Flag 2015 military air combat exercise, on April 14, 2015, to which six nations (The Netherlands, The US, Germany, Poland, Spain, Finland) participated through April 13 - 24.