The issues surrounding the Russian state and the area of Ukraine known as Crimea involve centuries of history and complex issues of sovereignty and self-determination. In an effort to untangle at least some of these issues, we've made a list of 60 vocabulary words drawn from Putin's speech of March 18, 2014.
Whatever one thinks of Putin and his methods, and whether the situation in Ukraine is the beginning of something or the end, it is this speech that history will likely turn to to examine Putin's public persona at this time. The entire text of the speech can be found here.