NATO was expressly designed as a workaround of the newly-formed United Nations. The UN was supposed to help facilitate diplomacy, prevent conflicts like the world wars, but the UN gave communist and ‘third world’ countries the right to speak/vote. NATO didn’t have that ‘problem.’

Canada was adamant about the need to construct such an alternate, in part because it sought to cement the bond between its two key allies, Britain and the United States, which had different views on his best to manage the rest of the world. (Classic colonialism vs neoimperialism)

Canadian diplomats secretly acknowledged that the entire premise of NATO (the threat of imminent soviet invasion) was false and that it was the west that was disturbing the peace.

Of course, that’s because NATO wasn’t about preserving peace at all, it was about destroying the left (massively popular in the late 1940s around the world) and the anti-colonial movements that sought to overthrow the capitalist order that had brought so much suffering.

So, NATO was always and remains a vehicle for the power of the old colonial elite. The ruling classes of the west, who have justified every genocide, famine and massacre by claiming that ‘western civilization’ was the pinnacle of human possibility.
