In Kyiv, residents face brutal -19C cold and ongoing power outages caused by sustained Russian strikes on critical infrastructure. To offer relief, Ukraine has deployed 'Invincibility Trains' — railway carriages running diesel engines to provide heat, light, and shelter. Alina, a mother of two, says the train is "a relatively safe and comfortable place" as her apartment has no electricity, water, or heating. Ukraine’s President Volodymyr Zelensky accused Russia of targeting power stations during winter, worsening the crisis. Kyiv’s Mayor Vitali Klitschko urged city residents to leave temporarily to reduce strain on resources, a message Russia twisted as defeatism. Families like Yulia and Ihor heat their homes by warming bricks on gas stoves; with limited electricity, they bundle their baby in layers. Engineers work around the clock in harsh weather to fix damaged power lines, operating in "emergency modes," according to Andrii Sobko of Kyiv Electric Networks. Despite the hardships, many residents stay resilient. Eleven-year-old Stas, who remembers the war’s start vividly, says, "Life is difficult," but keeps a hopeful smile. When air raid alarms sound, people leave the trains for shelters, only to return later. The harsh winter and energy crisis may ease soon, but the war’s impact and daily fear persist for many in Kyiv.