Poland

- Two school knife attacks in Poland within two days, resulting in three deaths (including a caretaker killed at a primary school by a former pupil) and multiple injuries; seven people were injured in a separate stabbing incident at a high school in northeastern Poland; attacker detained. - NATO discusses developing punitive deterrence doctrine to address Russian provocations against its eastern flank, including breaches of Polish airspace. - Poland and Romania refuse to help Ukraine move blocked grain out of the country, potentially exacerbating food security issues.