Because all their swimmers, runners, and high jumpers are in USA.
Baby cedar
Do they follow territorial boundaries? If the Kaos Kommandos start a brawl in El Paso and it rolls over into Juarez, do they say "screw it, let Justice League of Mexico handle it"? (Sorry if this isn't technically a joke; it was my shower thought this morning and I thought it was funny.)
At best they're ASICS.
A runner in scoring position.
Anyone who could run, swim or jump made it to the USA.
Because England was discovered before the USA!
Because it's hard to put out a Greece fire.
Because all of the Mexicans that can run,jump,and swim are in America!
Walking.
GoldiLochtes
The both came in a little behind