Leaders from the 28 countries that make up the North Atlantic Treaty Organization (NATO) meet in Brussels on Thursday, May 25.
See why the Alliance was created in 1949, and learn about its vital mission today:
https://www.youtube.com/watch?v=ov5od88CStg
Learn more about how NATO works. Is there a unique NATO military? Who pays for NATO operations? Get answers to these questions and more:
https://www.youtube.com/watch?v=nnMkJi0na1k