The Russian robot attack on Ukraine early on Sunday morning is described by the country's foreign minister as one of the larger ones directed against the country.
Neighboring country Poland responded quickly by raising the alert and activating "all available forces". The airspace is being patrolled with fighter jets together with allies.
There has previously been criticism of a lack of preparedness on the Polish side, both when robots have been nearby and when there have been reports of robots flying over Polish airspace. This could be a step towards being more on guard in general, says former lieutenant colonel Joakim Paasikivi.
It doesn't necessarily mean that the situation has changed or that Poland will now intervene in the war. Here, Poland wants to ensure that there is a preparedness to shoot down any robots that may enter Polish airspace.
Knocks out energy supply
Sunday morning's extensive attack on Ukraine, like previous attacks, targets Ukrainian power plants and energy supply. A strategy Russia has used, especially during the winter half-year, to create problems for industry and civilians.
Russia may also want to create another wave of refugees towards the West to pressure for negotiations that would be favorable to Russia, according to Paasikivi.
"No escalation"
It's not an escalation at all, but a constantly high level where Russia has tried, and unfortunately succeeded quite well, in knocking out much of Ukraine's energy supply.
It follows the pattern that Russia accumulates, i.e. produces robots and drones, and then launches as many as possible at once to saturate Ukraine's air defense.
