"Due to the aggressor's missile attacks on critical infrastructure facilities, we are considering various scenarios of the development of events," Klitschko said in a Telegram message."For that case, we are preparing over 1,000 heating points in our city,"Klitschko said the stations will not only have generators but will also have other necessities so that people can "warm up, drink tea, recharge your phones, and get the necessary help."Targeting Ukraine's energy infrastructure has become a new focus of Russia's invasion in the last few weeks.They attacks represent a different type of warfare from Russia, which has been losing on the battlefield to Ukraine, and are being done far from the front lines in the east of Ukraine, reaching far across the country to close to Ukraine's western border with other European countries.The mayor of the western city of Lviv said Russia's tactics are to use the cold as a weapon against Ukrainians as the harsh winter months draw closer."