Ukraine launched an attack to the east near Kharkiv and has captured the strategic rail junction of Kupiansk, which the Putin forces have been using to send supplies to a substantial part of the front.

The Putin forces soldiers who are cut off may have to surrender. That would be a very good thing — more victory with less bloodshed.

Reportedly Ukraine's army advanced 30 miles along a narrow route. That exposes them to the danger of counterattack from the flank, but perhaps the Putin forces are not capable of doing such a thing.