In 2014 a Mexican Helicopter “accidentally” crossed over the U.S. Border and fired two warning shots at U.S. Border Patrol Agents.

https://www.nbcnews.com/news/us-news/mexican-helicopter-crosses-u-s-border-fires-border-patrol-n142966

How much money have we spent on Jet Fuel that went into foreign aircraft during unauthorized mid-air refuels?