In November, a train carrying almost 500 people came to a sudden halt in eastern Poland. A broken overhead line had smashed several windows, and the track ahead was damaged. Elsewhere on the line, explosives detonated under a passing freight train.
No one was hurt in either case and the damage was limited, but Poland, which blamed the attack on Russia's intelligence services, responded forcefully: It deployed 10,000 troops to protect critical infrastructure.
The sabotage in Poland is one of 145 incidents in an Associated Press database that Western officials say are part of a campaign of disruption across Europe masterminded by Russia. Officials say the campaign — waged since President Vladimir Putin's invasion of Ukraine in 2022 — aims to deprive Kyiv of support, create divisions among Europeans and identify the continent's security weak spots.
So far in this hybrid war, most known acts of sabotage have resulted in minimal damage — nothing compared to the tens of thousands of lives lost and cities decimated across Ukraine.
But officials say each act — from vandalism of monuments to cyberattacks to warehouse fires — sucks up valuable security resources. The head of one large European intelligence service said investigations into Russian interference now swallow up as much of the agency's time as terrorism.
While the campaign places a heavy burden on European security services, it costs Russia next to nothing, officials say. That's because Moscow is carrying out cross-border operations that require European countries to cooperate extensively on investigations — while often using foreigners with criminal backgrounds as cheap proxies for Russian intelligence operatives. That means Moscow notches up a win just by tying up resources — even when plots aren't successful.
''It's a 24/7 operation between all the services to stop it,'' said a senior European intelligence official, who like the head of the European intelligence service and other officials who spoke to AP insisted on anonymity to discuss sensitive security matters.
Over the course of the year, AP spoke to more than 40 European and NATO officials from 13 countries to document the scope of this hybrid war, including incidents on its map only when linked by Western officials to Russia, its proxies or its ally Belarus.