Could NATO Expand and Replace the UN?

After my recent post suggesting that the US should abandon the UN, I was glad to read Daniel Pipes' posting about NATO. It is a discussion of a study by FAES, the think tank of former Spanish Prime Minister José María Aznar, titled "NATO: An Alliance for Freedom". The ending of Pipes piece is particularly worth quoting here I think:

NATO's mission, therefore, must be "to combat Islamic jihadism and the proliferation of weapons of mass destruction mainly, but not exclusively, among Islamic groups and governments." This means "placing the war against Islamic jihadism at the center of the Allied strategy" and that defeating Islamic jihadism will remain the organization's "key mission" for many years.

A second key recommendation in NATO: An Alliance for Freedom: That NATO
invite for full membership countries that are both liberal democracies and able and willing to contribute to the war against Islamic jihadism. The study emphasizes bringing Israel into the Alliance as "an extremely important step," and it endorses Japan and Australia for full membership. I might propose, in addition, Taiwan, South Korea, and Chile. To encourage other, struggling, states, the study suggests an associate membership for countries like Columbia and India. To which I suggest that Mexico and Sri Lanka could join their ranks.

One topic that FAES does not explicitly take up but hints at: that NATO could replace the United Nations as the key world body. As the UN sinks from one low spot to ever-slimier depths, it becomes increasingly obvious that for an international organization to behave in an adult manner requires limiting its membership to democratic states. A new organization could be created from scratch, to be sure, but it is easier, cheaper, and quicker to build on an existing structure especially one with
proven capabilities. NATO offers itself as the obvious candidate, especially as
reconceptualized by FAES.

Mr. Aznar and his team have produced the best plan yet for confronting radical Islam. Will politicians take it up?