After weeks of Russian gains, Ukraine troops have succeeded in stabilizing their position on battlefields across the war-battered nation, the commander of the armed forces says.

Gen. Valerii Zaluzhnyi said in a Telegram post that he told U.S. Gen. Mark Milley, the chairman of the Joint Chiefs, “an important factor contributing to our retention of defensive lines and positions” was the arrival of U.S. High Mobility Artillery Rocket System. HIMARS are being used for targeted strikes on Russian control points, ammunition and fuel storage depots, Zaluzhnyi said.

“It is difficult, tense, but completely under control,” Zaluzhnyi said of the now almost 5-month-long war.

President Volodymyr Zelenskyy, in his nightly address, said Russian troops are finding it increasingly difficult to hold positions in occupied territory.

“Step by step, we advance, disrupt supplies for the occupiers, identify and neutralize collaborators,” Zelenskyy said.

Latest developments:

►The Russian invasion has killed at least 353 children and injured another 676, the Ukraine government reported.

►Ukraine Defense Minister Oleksii Reznikov said U.S. Defense Secretary Lloyd Austin shared some “great news” and promised details would be released soon.

►Donetsk Gov. Pavlo Kyrylenko said four Russian strikes blasted the city of Kramatorsk, and he urged the more than 150,000 residents to evacuate.

►Ukraine high jumper Andriy Protsenko won the bronze medal at the World Athletics Championships on Monday in Eugene, Ore.

USA TODAY ON TELEGRAM: Join our Russia-Ukraine war channel to receive updates straight to your phone.

US says war has isolated Russia; Russia says that is ‘wishful thinking’

U.S. claims that Russia’s is facing global isolation due to the war are “wishful thinking,” the Russian Embassy in the United States said in a statement. The Russian leadership is in constant contact with leaders of most countries, the statement said.

“Even in the West, they are increasingly talking about the lack of alternatives to dialogue with Russia in global problems solving,” the statement added.

The statement was issued following a State Department briefing in which spokesman Ned Price said that “regardless of what we might hear from the Kremlin, the fact is that Russia has been economically, politically, diplomatically, financially isolated from the rest of the world.”

Ukraine first lady Olena Zelenska to address Congress

Ukrainian first lady Olena Zelenska will deliver remarks to Congress on Wednesday as she presses her husband’s campaign for more military support from the West. Zelenska met with Secretary of State Antony Blinken on Monday. State Department spokesperson Ned Price said Blinken emphasized the U.S. commitment to support Ukraine and reiterated the U.S. resolve to helping the people of Ukraine recover and rebuild from the devastation.

“The secretary strongly condemned Russia’s brutal attacks, which continue to wound and kill innocent civilians and destroy homes, hospitals, schools and other civilian infrastructure,” Price said.

Zelenskyy suspends dozens more officials pending treason probe

Ukrainian President Volodymyr Zelenskyy expanded the shakeup of his security services by suspending 28 more officials. Earlier this week Zelenskyy suspended his prosecutor general and his security services chief, saying their agencies harbored too many “collaborators and traitors.” 

“Different levels, different directions,” Zelenskyy said of the latest suspensions. “But the grounds are similar – unsatisfactory job performance.”