|Host country United States||Dates April 24–25, 1999|
|Venue(s) Andrew W. Mellon Auditorium|
The 1999 Washington summit was the 16th NATO summit and was held in Washington, D.C. on April 24–25, 1999.
Held at the height of the NATO bombing of Yugoslavia, the summit commemorated the fiftieth anniversary of NATO and reiterated the "determination to put an end to the repressive actions" by Serbian President Milošević against the local ethnic Albanian population in Kosovo. It was also the first summit in which three new NATO members (the Czech Republic, Hungary and Poland) participated.
The Membership Action Plan, an important part of NATO's Open Door Policy was adopted and a revised version of the Strategic Concept was made public. The European Security and Defence Identity within NATO was also enhanced; the Defence Capabilities Initiative and the Weapons of Mass Destruction Initiative was launched; the Partnership for Peace, the Euro-Atlantic Partnership Council and the Mediterranean Dialogue was strengthened.