FILE PHOTO: Ukrainian serviceman walks next to a residential building heavily damaged by permanent Russian military strikes in the front line town of Avdiivka

FILE PHOTO: A Ukrainian serviceman walks next to a residential building heavily damaged by permanent Russian military strikes in the front line town of Avdiivka, amid Russia's attack on Ukraine, in Donetsk region, Ukraine, Nov. 8, 2023. 

KYIV - Outnumbered Ukrainian defenders were fighting fierce battles inside the small eastern city of Avdiivka on Friday, commanders said, as Russian forces closed in on the strategic location ahead of their invasion's two-year mark.

"The pressure is permanent," said Rodion Kudriashov, deputy commander of the elite Third Separate Assault Brigade, describing Russian assaults round the clock with some Ukrainian units forced to hold "a defense of 360 degrees."