NATO is changing. It is expanding.
You all understand a little about NATO's Article 5. NATO members are obligated to come to the aid of another member who is under attack. It also applies reasonable assurances that no NATO country is to declare war against another NATO country. This has probably saved Greece and Turkey from war on a number of occasions.
There are 28 full members of NATO, comprising the North American and European areas. Followed closely by the 5 country Treaty known as AUSCANNZUKUS Treaty - comprising AUS, CAN, USA, UK and NZ. The 2 countries which are not NATO members participate as "Associate" partners (AUS, NZ). These countries have their own Article 5 but the idea is that they all be included in the NATO umbrella. It obviously means that they will have to send troops to Europe if one of their allies are attacked and likewise, countries in NATO may be obliged to send troops as far away as NZ if NZ is attacked (unlikely scenario).
Then there is the Pacific Rim partners which include Japan, and South Korea. Along with that, some Arab Countries are on NATO's cusp - Jordan, UAE, QATAR, Saudi Arabia, Kuwait etc.
The idea is that NATO will be expanded and become global. The reason for this is because countries like AUS, and Japan are ranked as the biggest contributors to NATO Operations such as the NATO Combined Tasked Force against Piracy near Somalia.
Is this something we can afford to be out of?
We know about Turkey's vetoes, but this issue in my opinion needs to be raised in the negotiations, where Turkey's veto is removed in exchange for Cyprus supporting Turkey to join the EU.
NATO can offer all the security Cyprus needs. The mere fact that countries like NZ are forging extremely close relations is saying something which can't be ignored.