HELSINKI (AP) — NATO Secretary-General Mark Rutte announced Tuesday that the alliance is launching a new mission to protect undersea cables in the Baltic Sea region.

Rutte said at a meeting in Helsinki with the leaders of NATO countries located on the Baltic Sea that the effort would be dubbed Baltic Sentry.

“It will involve a range of assets, including frigates and maritime patrol aircraft, among others, and will enhance our vigilance in the Baltic,” Rutte told reporters. He also said that a small fleet of naval drones will be deployed “to provide enhanced surveillance and deterrence.”

The meeting follows a string of incidents in the Baltic that have heightened concerns about possible Russian activities in the region.

Announcing the new operation, Rutte noted that more than 95% of internet traffic is secured via undersea cables, and 1.3 million kilometers (808,000 miles) of cables guarantee an estimated $10 trillion worth of financial transactions every day.

“Across the alliance, we have seen elements of a campaign to destabilize our societies through cyberattacks, assassination attempts and sabotage, including possible sabotage of undersea cables in the Baltic Sea,” he said.

Rutte said NATO’s adversaries must know that the alliance will not accept attacks on its critical infrastructure, underlining that “we will do everything in our power to make sure that we fight back, that we are able to see what is happening and then take the next steps to make sure that that doesn’t happen again.”