Ukraine strengthens border defenses amid ongoing Russia-Ukraine conflict.

Ukrainian forces are strengthening their defensive lines along the border with Belarus and Russia. More than 30 children have been reunited with their families after being taken illegally to Russia. The UK's Ministry of Defence said Russia's campaign to break down Ukraine's energy system has "highly likely failed". Ukraine's Ministry of Defence reported that 177,680 Russian troops have been killed and 7,020 armoured combat vehicles have been destroyed. Ukrainians marked the first anniversary of a missile strike on Kramatorsk railway station. The US justice department is investigating the possible release of altered Pentagon documents related to US and Nato aid to Ukraine.