Washingtonpost.com: The 50th Anniversary of NATO

March 16, 1999
An honor guard marches past the circle of flags at NATO headquarters in Brussels during a ceremony that marked the entry of Poland, the Czech Republic and Hungary into the alliance.

25 of 30

March 16, 1999 An honor guard marches past the circle of flags at NATO headquarters in Brussels during a ceremony that marked the entry of Poland, the Czech Republic and Hungary into the alliance. 25 of 30
	AP Photo / Dusan Vranic