"Nuclear parity is a condition at a given point in time when opposing forces possess offensive and defensive systems approximately equal in overall combat effectiveness"
World with nukes appeared to be more peaceful than without. While nuclear superpowers have parity, conventional war between them is impossible. This is the reason why we we never had WWIII between Soviets/Russia/China and US/NATO.
However, other measures like economical pressure and trade wars, espionage, proxy wars, and now informational war are still ongoing. I would leave as a statement that all these things are "much better" than real World War.