As the crisis in Ukraine unfolds, the United States is deploying around 600 soldiers to Poland, Latvia, Lithuania and Estonia for military exercises. Pentagon spokesperson John Kirby said the operation will send a message to Russia.

John Kirby: “The United States takes seriously our obligations under Article 5 of the NATO alliance, even though these aren’t NATO exercises. It’s a very tangible representation of our commitment to our security obligations in Europe. If there’s a message to Moscow, it is the same exact message, that we take our obligations very, very seriously on the continent of Europe.”