NATO leaders discuss Ukraine and alliance support.

NATO Secretary General Jens Stoltenberg has said that Ukrainian soldiers are "gaining ground" in their offensive against Russian-occupied parts of the east and south, retaking seven small towns and villages from Russian troops. The early battles may suggest that the tens of billions invested by the U.S.-led coalition in equipping and training Ukrainian forces with western weapons and how to use them is paying off. For NATO allies, Ukrainian success on the battlefield will be critical to sustaining public support needed to ensure the steady flow of military aid that Stoltenberg said is vital.