This is a market on whether the North Atlantic Treaty Organization (NATO) will have more than 30 full member states for any length of time before January 1, 2023, 12:00:00 AM ET. If NATO announces it has more than 30 member states at any point before January 1, 2023, this market will resolve as “Yes”. Otherwise, this market will resolve to "No."

The primary settlement source for this market will be the official NATO website (https://www.nato.int/cps/en/natohq/nato_countries.htm), however other credible sources may be used.