KYIV, Ukraine — Ukraine’s new military chief said Friday his immediate goals are to improve the rotation of troops out of the front lines and harness the power of new technology in the fight against Russia’s invasion.

Col. Gen. Oleksandr Syrskyi, who previously was the commander of Ukraine’s ground forces, spoke a day after President Volodymyr Zelenskyy put him in charge of the battlefield campaign against Russia’s invasion.

“New tasks are on the agenda,” Syrskyi said on his Telegram channel.

Though he provided little detail, his remarks appeared to align with Zelenskyy’s stated aim of bringing “renewal” to the armed forces in Thursday’s shake-up and adopting a fresh approach to the fight.

But the changes at the top won’t solve some of Ukraine’s biggest problems: a shortage of manpower that has helped sap morale and may require a mass mobilization, and the inadequate supply of Western weapons to take on Russia’s might.

The shake-up of the military top brass caused some apprehension on the streets of Kyiv, the country’s capital.

Alisa Riazantseva, 35, said she had been “generally satisfied” with Syrskyi’s popular predecessor, Gen. Valerii Zaluzhnyi. “We hope that our government has not made a big mistake” by replacing him, she told The Associated Press.

Oleksandr Azimov, 61, said there was “some discontent, some dissatisfaction” about the changes at the top.

That may be a reference to previous criticism of Syrskyi’s strategy of holding on for nine months to the city of Bakhmut, which brought the war’s longest and bloodiest battle and which cost Ukraine dearly in troop losses. But it served the purpose of sapping Russia’s forces.

Syrskyi takes charge at an overall difficult time for Ukraine’s war effort. With the fighting about to enter its third year, Kyiv is largely dependent on support from Western countries where signs of war fatigue have emerged.

That has left Ukraine on the defensive while Russia has placed its economy on a war footing and is building up its weapon stockpiles. Analysts detected no sign of a deeper malaise in Zelenskyy’s move, which had been rumored for weeks.

“Command changes are normal for a state fighting a war over several years,” the Institute for the Study of War, a Washington think tank, said late Thursday.

Asked about Zaluzhnyi’s exit and Syrskyi’s appointment, Kremlin spokesman Dmitry Peskov on Friday downplayed the moves.

“We don’t think that these are the factors that could change the course of the special [military] operation,” he said, using the Russian government’s euphemism for the war.

Russian President Vladimir Putin used an interview broadcast late Thursday with former Fox News host Tucker Carlson to urge Washington to recognize Moscow’s interests and persuade Ukraine to sit down for talks.

Meanwhile, German Chancellor Olaf Scholz was in Washington for talks with President Joe Biden on Friday about new U.S. military aid for Ukraine. The vital support is being held up by disputes in Congress.

Syrski, who was born in the Soviet Union and attended Moscow Higher Military Command School as well as serving in the Soviet Artillery Corps, is described as an obsessive planner, and his comments Friday said his first job was to ensure “clear and detailed planning.”

He also placed emphasis on ensuring the well-being of troops. “The life and health of servicemen have always been and are the main value of the Ukrainian Army,” he said — perhaps a reference to the Bakhmut criticism.

Syrski is viewed as the architect of the counteroffensive in the Kharkiv region in September 2022. That was the most significant Ukrainian victory of the war, allowing Kyiv to push the Kremlin’s forces out of the cities of Kupiansk and Izium.

Zelenskyy signed orders Friday to award Zaluzhnyi and Kyrylo Budanov, chief of Ukraine’s Military Intelligence, with the Golden Star award, the country’s highest honor.

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