Russia’s illegal seizure of Crimea from Ukraine 11 years ago was quick and bloodless. But Kyiv and most of the world never recognized Moscow’s annexation of the strategic peninsula.

The Ukrainian president has consistently rejected the suggestion that his country give up its claim to the Crimean Peninsula.

The Kremlin said it reserves the right to use nuclear weapons if it faces aggression by Western countries. Overnight, Moscow attacked Kyiv, killing at least eight people.