Kyiv’s forces are up against a concerted Russian push in eastern Ukraine, a military official says WSB-TV Channel 2 [Video]

KYIV, Ukraine — (AP) — The situation on the front line in eastern Ukraine is worsening but local defenders are so far holding firm against a concerted push by Russia’s bigger and better-equipped forces, a senior Ukrainian military official said Thursday.

Nazar Voloshyn, spokesperson for Ukrainian strategic command in the east of the country, said Russia has amassed troops in the Donetsk region in an effort to punch through the Ukrainian defensive line.

“The enemy is actively attacking along the entire front line, and in several directions they have achieved certain tactical advances,” he said on national television. “The situation is changing dynamically.”

Russia has pushed Ukraine onto the back foot on the battlefield as Kyiv grapples with shortages of troops and ammunition. Ukrainian forces are now racing to build more defensive fortifications at places along the around 1,000-kilometer (600-mile) front line.

Ukraine’s difficulties have been deepening for months as the military waited for vital new military aidfrom the United States. The support was held …