Why was Russia’s invasion of Ukraine such a miscalculation? | Ukraine latest

Ukrainian Deputy Prime Minister Iryna Vereshchuk said on Facebook that a total of 3,343 people were evacuated from Ukrainian cities via humanitarian corridors on Thursday. She said 2,717 people managed to leave Mariupol, which is under siege by Russia. Vereshchuk claimed that Russian forces had prevented humanitarian aid convoys from entering Mariupol.<br /><br />Ukrainian lawmakers voted overwhelming in support of a measure to punish citizens who help Russian forces. Ukrainian collaborators could face up to 12 years in prison for "intentional activities aimed at aiding the aggressor state," a statement on Ukraine's parliament website said. Collaborators could also be temporarily disbarred from government positions and their assets may be taken away. Ukrainian presidential adviser Oleksiy Arestovych said that the battlefront is "practically frozen." He said Russian forces are "practically at a standstill" and claimed Russian troops lack the resources to advance their offensive. Arestovych said Russian forces face shortages of fuel, ammunition and rations. He said Russia has switched its tactics from offense to defense, but this statement has not been confirmed by reports on the ground.