The Russian invasion of Crimea has put the entire global security system at risk: states can no longer count on the validity of guarantees endorsed through international agreements (e.g. the Budapest Memorandum); the principle of inviola...

President Putin’s press conference seems to have taken some of the heat off Ukraine today. Although Russian troops continue to face off with Ukrainian military personnel in Crimea, tonight it seems unlikely that Putin’s invasion of Ukrai...

Today, Sunday, I went to Maidan. Several hundred thousand Kyiv residents went there also. We came together to commiserate; to pay our respects to those who died last week as Kyiv rid itself of a tyrant; to deal with our shock at having o...