Russia said on Friday it had finished calling up reservists to fight in Ukraine, having drafted hundreds of thousands in a month and sending more than a quarter of them already to the battlefield after a divisive mobilization campaign that was its first since World War II.

The United States, meanwhile, announced it would send another $275 million in military assistance to Ukraine, including arms, munitions and equipment from Pentagon inventories, bringing U.S. military assistance to the country under the Biden administration to more than $18.5 billion

U.S. Secretary of State Antony Blinken said Washington was working to provide Ukraine with air defense capabilities it needs, with two initial sophisticated anti-aircraft NASAMS ready for delivery to the country next month.