What is "foxtrots"

Usage examples of "foxtrots".

That gives us twelve Soviet subs in transit north and south, plus a November and three more Foxtrots that have been exercising with the Cuban Navy.

Won’t be dancing too many foxtrots from now on, but who really gives a fuck, eh?

I'd heard toe bones cracking, and she'd limped through two foxtrots, a waltz and the Conga.