Tusk: Escalation in Russia's hybrid war against Europe possible around Christmas

Polish Prime Minister Donald Tusk has stated that there is data indicating a possible escalation of the situation in Russia's hybrid war against Europe around the Christmas period. A hybrid, or shadow, war means undermining an adversary by means other than open armed aggression. Tusk's statement was reported by the Polish news portal WP Wiadomosci and relayed by the Latvian site TVNET.

What is known

The source says only that Tusk refers to available data and a possible intensification around Christmas. It does not specify what the data is, where it comes from or what actions are expected.

Tusk is the head of the Polish government, so his assessment of the security situation in Europe is an important signal for the region. Poland borders Ukraine, Belarus and Russia's Kaliningrad region.