Putin warns West that Russia is ready to use all weapons to protect Kaliningrad BBCPutin says Russia will use “every weapon” in its arsenal if its territory is attacked NBC NewsRussia warns NATO of possible nuclear response if Kaliningrad is cut off AP NewsPutin says “every weapon” in its arsenal if there is an attack on Russia, as happened The GuardianWhy Russia’s Kaliningrad is a possible flashpoint with NATO Reuters
