Ukrainian President Zelenskyy replaces top security official

Ukrainian President Volodymyr Zelenskyy has announced the dismissal of a senior security official who has been at the center of defense policy-making for years.

On Tuesday, Zelenskyy issued a decree dismissing Secretary of the National Security and Defense Council Oleksii Danilov.

The council is the "coordinating body in matters pertaining to national security and defense under the President of Ukraine."

Danilov was appointed to the post by Zelenskyy in 2019, and he has been handling Russia's invasion of Ukraine.

Oleksandr Lytvynenko, the head of the country's foreign intelligence service, will succeed Danilov. Zelenskyy gave no reason for the change.

In a social media post, Danilov said he was grateful that he had been given an opportunity to serve his country and its people in times of peace and war.

Zelenskyy posted a video message after the announcement was made about Danilov's dismissal. In it, the president thanked Danilov. He also promised that he will continue to strengthen Ukraine and upgrade the "state system in all areas."

Zelenskyy dismissed Valerii Zaluzhnyi as the country's commander-in-chief last month. Zaluzhnyi was highly popular among people in Ukraine. Observers are watching to see if this latest change will influence Ukraine's strategies regarding the invasion.