According to the news item, what can we know about NATO?

News Item 3
    After seven months, the NATO mission in Libya is finally over. NATO stands for the North Atlantic Treaty Organization. 28 countries are members of NATO. And when NATO takes on a mission like it did in Libya, the operation is carried out by military forces from some of its member nations. In this case, that meant countries like the United States and France flying airstrikes over Libya. (9) Part of NATO mission was to protect Libya’s civilians during the civil war. NATO’s secretary general went to Libya on Monday. You see him here getting off the plane. He announced the formal end of the mission.
    Now Libya’s new leader said they thought that was a mistake. (10) One official said he expected NATO to suspend its mission in Libya, but not cancel it completely. The U. S. Defense Department says it plans to keep monitoring Libya from the sky at least for a little while.