British Prime Minister Boris Johnson, here seen addressing a press conference with Finnish President Sauli Niinisto in Helsinki, Finland, on Wednesday, signed a security pact with Finland just ahead of the European nation's decision on whether to apply for NATO membership. A decision by Finland and Sweden to join NATO will improve deterrence against Russia in northern Europe and add to the U.S.-led military alliance's security, one analyst from Atlantic Council told CNBC on Thursday. Her comments came right before Finland's President Sauli Niinisto and Prime Minister Sanna Marin announced their country should apply to join the North Atlantic Treaty Organization "without delay." "NATO membership would strengthen Finland's security. As a member of NATO, Finland would strengthen the entire defense alliance," they said in a joint statement. . . . read the full article here.