Putin ordered Sunday Russia's nuclear forces onto high alert in response to what he called "unfriendly" steps by the West. Russia has the world's largest arsenal of nuclear weapons and a huge cache of ballistic missiles
An Ukrainian Territorial Defence fighter takes the automatic grenade launcher from a destroyed Russian infantry mobility vehicle GAZ Tigr after the fight in Kharkiv on February 27, 2022. - Ukrainian forces secured full control of Kharkiv on February 27, 2022 following street fighting with Russian troops in the country's second biggest city, the local governor said. (Photo by Sergey BOBOK / AFP)