Blinken vows US will back Ukraine till security 'guaranteed'

The United States will back Ukraine until its security is "guaranteed", U.S. Secretary of State Antony Blinken vowed on a trip to Kiev on Tuesday, after Russian forces claimed further advances in the northeastern Kharkiv region.

Blinken's visit came just weeks after the U.S. Congress finally approved a $61-billion financial aid package for Ukraine following months of political wrangling, unlocking much-needed arms for the country's outgunned troops.

"We're with you today. And we will stay by your side, until Ukraine's security, sovereignty, and ability to choose its own path is guaranteed," Blinken said in a speech.

"The assistance is now on its way. Some of it has already arrived. More will be arriving," he had told Ukrainian President Volodymyr Zelensky during a meeting earlier.

"That's going to make a real difference against the ongoing Russian aggression on the battlefield," he said.

Zelensky thanked Washington for the aid, which he said was "crucial" — but stressed it was "important to get it as quickly as possible".

"We need a noticeable acceleration of supplies. Now too much time passes between the announcement of packages and the actual appearance of weapons on the frontline," he said in an evening address.

Zelensky said air defense was the "biggest problem" for Ukraine and requested two Patriot batteries for the Kharkiv region, where Russian forces have been advancing and pounding villages along the border since Friday.

Blinken was on his fourth visit to Kiev since Russia invaded Ukraine in February 2022.

After meeting Zelensky, he met Ukrainian Foreign Minister Dmytro Kuleba in Veterano, a pizzeria set up by a military veteran in the city centre.

Driving his point home at a visit to an...