Estonian Prime Minister Kaja Kallas said it appeared to be part of a "broader pattern" of action by Moscow to use "tools related to the border to create fear and anxiety"
Since Estonia is a member of NATO and attacking them would carry serious military consequences, I’m guessing that this is “mere” harassment. Putin is attempting to make people nervous.
Russian border guards have removed navigation buoys from the Estonian side of a river separating the two countries, the Baltic nation said on Thursday, adding that it would seek an explanation as well as a return of the equipment.
Setting aside the broader border dispute issue and just focusing on boat navigation, I'd also point out that Russia is jamming GPS, which probably doesn't help navigating the thing.
