After an offensive lasting several months, Russian troops captured the Ukrainian town of Avdiivka this weekend. It is Russia's first major battlefield victory since last May, and it comes ahead of Russia's presidential elections in March.
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Ukraine's new military commander has decided to withdraw his troops "to protect the lives and health of soldiers." In a phone call with Ukrainian President Volodymyr Zelensky on Saturday, President Biden blamed Ukraine's dwindling arms and ammunition supplies on "lack of action from Congress."