Putin calls on Russian military units to 'rest' and 'increase their combat capabilities' after taking control; Ukrainian forces retreat to avoid being surrounded

Kyiv gives up control of Lysychansk, last major city in the region still in its hands, freeing up Moscow's forces to advance on other Ukrainian strongholds

For the first time, Moscow's forces cross Siverskyi Donets River to attack Lysychansk, bringing them closer to control of entire Donbas region

Official says Lysychansk still in Ukrainian control, after Moscow-backed separatists report encircling it; Zelensky: 'Cruelty' of war increasing in some places

For 1st time in 3 weeks, Ukraine capital hit in what mayor calls 'intimidation'; Moscow's forces seize Severodonetsk, battle moves to neighboring Lysychansk

Pro-Moscow separatists report street fighting in Lysychansk; Putin says Russia to provide Belarus with nuclear-capable missiles

Regional governor describes 'very difficult' situation in Severodonetsk, one of several important urban hubs in Russia's path to capturing entire Luhansk region