Peaceful cooperation amongst countries that are very important to world security. There was a peaceful cooperation amongst all major world powers, which is a drastic turning point from the prior few hundred years that bred indefinite wars amongst major world powers. Cambodia, and most other countries that have seen wars since the end of WW2, don't really matter on the world scale. Doesn't make the negative impacts on them any less real, but in general sweeping statements, the world did see peaceful cooperation.