Explanation:

Explanation:

• Statement 2 is incorrect: NATO is committed to the principle that an attack against one or several of its members is considered as an attack against all. This is the principle of collective defence, which is enshrined in Article 5 of the Washington Treaty. So far, Article 5 has been invoked once - in response to the 9/11 terrorist attacks in the United States in 2001.
• Statement 3 is incorrect: NATO follows an open door policy with regard to enlargement. NATO membership is open to any other European state in a position to further the principles of this Treaty and to contribute to the security of the North Atlantic area. Supplementary notes: NATO
• NATO is an alliance of countries from Europe and North America. It provides a unique link between these two continents, enabling them to consult and cooperate in the fi eld of defence and security, and conduct multinational crisis-management operations together.
• NATO promotes democratic values and enables members to consult and cooperate on defence and security-related issues to solve problems, build trust and, in the long run, prevent con fl ict.
• NATO is committed to the principle that an attack against one or several of its members is considered as an attack against all. This is the principle of collective defence, which is enshrined in Article 5 of the Washington Treaty.
• So far, Article 5 has been invoked once - in response to the 9/11 terrorist attacks in the United States in 2001.
• The 2010 Strategic Concept de fi nes NATO’s cores tasks as: collective defence, crisis-management and cooperative security