Zelensky replaced the Chief of Staff: "A new approach to the war is required" The outgoing chief of staff managed to repel Russia from Kiev at the start of the invasion. However, the Ukrainian army failed in the counterattack it launched last summer, and was unable to break through the well-fortified Russian defense lines.
Now, Russian President Vladimir Putin's forces are once again on the offensive, while Kiev is desperate for continued US aid stalled by power struggles in Congress.