Do we need a military organisatio like NATO, at the time of GLOBALISATION & PEACEFULL Co-Existence?

The world war time is gone and the Peaceful Globalisation, and Co-existence of world poppulation. Hire we need social thinking, betterment to all. Without a weapon lobby`s?. NATO a military alliance of the past. In today`s peaceful world has no place, which swallows "TRILLIONS OF $`s", and the only winner is the WEPPON LOBBY?