WASHINGTON — NATO ministers this week reaffirmed their committment to collective defense following Russia's annexation of Ukraine's Crimean peninsula.
NATO Secretary General Anders Fogh Rasmussen used strong language to describe Russia’s military incursion into Ukraine and its annexation of Crimea.
“Russia’s aggression against Ukraine is the gravest threat to European security in a generation.”
That view is shared by Charles Kupchan, a NATO expert at Georgetown University.

“There have been other competitors for that honor, incl