Finland strengthens new NATO border Finland has begun construction of a high security fence along its 1,340km border with Russia, now NATO’s longest single stretch EASTERN BORDER BARRIER FENCE Most of 130-260km-long fence to be located in south east Finland Cost: € hundreds of millions Duration: 3-4 years Lifespan: 50 years (technical monitoring system 10 years) NATO members Potential member Key military bases: Naval Air ATLANTIC OCEAN NORWAY DENMARK North Sea GERMANY SWEDEN FINLAND ESTONIA LATVIA Baltic Sea POLAND BELARUS Murmansk Imatra: 3km pilot fence, completion summer 2023 St. Petersburg RUSSIA LITHUANIA Moscow 200km 125 miles Sources: Bloomberg, Reuters Picture: Finnish Border Guard © GRAPHIC NEWS