Not sure what you're asking. The NATO Charter states that when one member is attacked then it is an attack against all members.
its protection if the US was ever attacked, Also mean the U.S has to respond if any NATO country was attacked. but its true goal is to maintain peace.
NATO is a mutual defense alliance, by which all members agree to come to the aid of any other member if that member has been attacked by any other nation. Originally it was formed to defend specifically against the Warsaw Pact nations, but even after the end of the Cold War and the Warsaw Pact, NATO still exists to defend against whatever military threat may arise.
Africa's countries are not members of NATO.
mostly Serbia
The membership of NATO was expanded as new NATO to include new members.
As Turkey is a NATO member, you can count all the NATO members most importantly U.S.
The member nations of NATO agreed to come to the aid of any country that was under attack.
NATO doesn't really have a job, it's a defend and military alliance. The most important point with it, is that they build up and use the members army, another point is that if a country attacks a NATO- country, it's like attacking ALL the NATO-countries.
Nato did not exist during WW2.
At the beginning (1949), it was meant to stop communism from spreading into war-torn western Europe. It was an anti-soviet/communism organization. Today, it's so the nations can protect each other. Ex) After 9/11, all the NATO members invaded Afghanistan because the US (a NATO member), was attacked. If any one NATO member was attacked, all would declair war/attack on the national that attacked the one NATO member. Like I said, a perfect example is 9/11. (North Atlantic Treaty Organization)
I think we need nato because if we were ever going to get attacked they may be able to help us just like they helped western europe the two times in 30 years that they were attacked.