There are currently 28 member countries in the NATO defence alliance, they are:
ALBANIA (joined 2009)
BELGIUM (joined 1949)
BULGARIA (joined 2004)
CANADA (joined 1949)
CROATIA (joined 2009)
CZECH REPUBLIC (joined 1999)
DENMARK (joined 1949)
ESTONIA (joined 2004)
FRANCE (joined 1949)
GERMANY (joined 1955)
GREECE (joined 1952)
HUNGARY (joined 1999)
ICELAND (joined 1949)
ITALY (joined 1949)
LATVIA (joined 2004)
LITHUANIA (joined 2004)
LUXEMBOURG (joined 1949)
NETHERLANDS (joined 1949)
NORWAY (joined 1949)
POLAND (joined 1999)
PORTUGAL (joined 1949)
ROMANIA (joined 2004)
SLOVAKIA (joined 2004)
SLOVENIA (joined 2004)
SPAIN (joined 1982)
TURKEY (joined 1952)
THE UNITED KINGDOM (joined 1949)
THE UNITED STATES (joined 1949)
For more information about NATO, please click here: What is NATO?