The document provides information about the Ukraine crisis, including:
1) Ukraine is located in Eastern Europe and was formerly part of the Soviet Union along with Russia. Crimea, now occupied by Russia, was formerly part of Ukraine.
2) NATO expansion caused tensions as Russia opposed Ukraine joining NATO due to security concerns about Western military presence near its borders.
3) The conflict began when Ukraine's president rejected an EU trade deal in 2013, leading to protests that ousted him. Russia then annexed Crimea and supported separatists in eastern Ukraine, hoping to prevent Ukraine from joining NATO and the EU.
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