The Baltic Sea operation in the region bordering Russia comes as European fears of sabotage mount after a string of disruptions to underwater cables.

NATO countries will deploy frigates, patrol aircraft and naval drones in the Baltic Sea to help protect critical infrastructure and reserve the right to take action against ships suspected of posing a security threat,

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NATO is stepping up its response over what it sees as an increasing threat to vital infrastructure in the Baltic Sea. Its new mission "Baltic Sentry" aims to protect undersea cables from sabotage after a spate of alleged attacks with a Russia-linked so-called shadow fleet involved.

Why has NATO launched a new operation in the Baltic Sea? Are the sanctions against Russia by the EU and US really working? Carl Bildt, former prime minister of Sweden and co-chair of the European Council on Foreign Relations,