At present, Helsinki still boasts a 200-odd kilometer long network of underground tunnels, shelters and passageways, which are being routinely used by Finnish soldiers for training. According to the Finnish newspaper Ilta-Sanomat, the subterranean bunker city, built and expanded since the late 1950s, offers an important tactical advantage, should the Finnish capital ever be attacked.
Today, a significant part of the underground facilities are in civilian use, but can be converted into shelters and command centers within a few days after a declaration of war. According to the Wall Street Journal, Helsinki's tunnels could potentially house up to 600,000 inhabitants, which roughly corresponds to the city's entire population, bar the metropolitan area.
Needless to say, Russia is once again being portrayed as a possible intruder, this time in connection to the major Russian-Belarusian Zapad 2017 exercise to be held in September. The Russian Defense Ministry has repeatedly stressed that the joint exercise is planned and international observers have been invited.
"Russia's involvement in Crimea and Eastern Ukraine has made the Finnish military return to its roots as a standing army. The Defense Forces have acted more in a training mode for a long time, with the army especially now stepping up as a standby force," Arto Pulkki told Ilta-Sanomat.
Pulkki called the underground defenses a "considerable advantage," yet admitted that there are other ways of influencing Finland than direct military aggression, such as disrupting energy distribution.
According to Russian military expert, retired colonel and columnist Viktor Baranets, Finland's plans to revive the Cold War-era bunkers are sheer paranoia.
"The West's overwhelming propaganda about the 'Russian military threat' has given rise to a kind of social schizophrenia in Norway and Sweden, and now it's spreading in Finland," Baranets told Radio Sputnik.
"Hence this myth about the 'Russian bear with nuclear fangs.' Well, we have a paranoid product made in Finland. However, it seems to me that Russia's calm neighborly line towards Helsinki will still overcome this new foolishness. Let them dig holes from border to border. In the long run, they will eventually themselves laugh at the politicians who are intimidating the Finnish people," Viktor Baranets concluded.
Last week, Finland passed a law outlawing so-called "little green men," or military forces operating without recognizable insignia, implying Russian soldiers.