
The market will resolve as YES for all countries that record in any year between 2024-2030 a budget for military expenditure exceeding 2% of their GDP, as per NATO data (https://www.nato.int/).
This includes any future NATO member, whose number is published by NATO in the time period in question.
For example, the published numbers for 2023 are here:

People are also trading
Hey, this year's report shows all countries met the 2% taraget https://www.nato.int/content/dam/nato/webready/documents/publications-and-reports/annual-reports/sgar25-en.pdf#page=26


I think all options of this market can be resolved as YES.
any @mods can resolve YES for the countries above 2% in page 4 of https://www.nato.int/nato_static_fl2014/assets/pdf/2024/6/pdf/240617-def-exp-2024-en.pdf
The Economist has published an article on this topic this week
Can Europe defend itself without America? (economist.com)
