Today in Sweden the military flew a couple of jets in xmas tree formation over Stockholm :)
https://www.aftonbladet.se/nyheter/a/oRpj10/darfor-flog-jas-...
https://www.aftonbladet.se/nyheter/a/oRpj10/darfor-flog-jas-...
'a couple' = 2, 'a few' would be more accurate :)
[1](https://dictionary.cambridge.org/dictionary/english/couple)
Regardless of whether people will use a "couple" to mean an indeterminate small number that may be more than exactly two, it doesn't mean 16 jets, as 16 is a large number of jets to be doing something together, unless one is intentionally understating. How many planes are in the air at a time? "A couple"