Ukrainian president's new chief of staff Andriy Yermak speaks during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak reacts during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak leaves after a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak arrives to speak during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak speaks during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak speaks during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak reacts during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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Ukrainian president's new chief of staff Andriy Yermak speaks during a briefing, in Kiev, Ukraine. Ukrainian President Volodymyr Zelensky replaced his chief of staff Andriy Bogdan with Andriy Yermak on February 11.

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