Were they at that base as a (say) mechanic servicing aircraft engines for flights over the Persian Gulf? Are the only reasons why the planes (and thus him) are there is because of the hostilities with Iran, as otherwise they would be States-side?

Systems use arbitrary buckets like if someone commits suicide in less than six months from coming home after a war might count it, while excluding every case after six months. That’s going to misclassify cases in both directions but means you don’t need to track millions of people for decades or look through mental health details.

Obviously people with more data to work with can make a convincing case you’re wrong, but higher levels accuracy get expensive. In the end we know more than 1 million Americans died of COVID for example, how many more isn’t precisely known but ~1 million is plenty useful for decision making around the next pandemic.

The official added that under the deal, the US has unilateral power to build additional military structures with no approval needed from Greenland or Denmark. It includes "permanent access, basing and overflights rights," the official said.

It also bans non-Nato countries from building bases in Greenland, and "bans adversaries from making investments in Greenland that could threaten the United States".

The official added that under the current status quo, adversaries have been allowed to invest in Greenland's "sensitive sectors without investment screening".

The official specifically referenced Russia and China, saying it blocks them from deploying troops or making investments in "sensitive sectors".

Without the official text being released, it is unclear how exactly the deal differs from a 1951 agreement with Denmark, under which the US can send as many troops as it wants to Greenland."

https://www.bbc.com/news/articles/c63d7lexyym1o