The U.S. Air Force Thunderbirds fly by the Eiffel Tower during a practice procession in Paris, France, July 11, 2017. The Thunderbirds, along with more than 90 aircraft, will be in attendance to help France celebrate the 2017 Bastille Day festivities. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds fly by the Louvre Museum during a practice procession of Bastille Day in Paris, France, July 11, 2017. The Thunderbirds, along with more than 90 aircraft, will be in attendance to help France celebrate the 2017 Bastille Day festivities. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds receive aerial refueling from a U.S. Air Force KC-135 Stratotanker assigned to the 100th Air Refueling Wing, Royal Air Force Mildenhall, England en route to the practice fly by of Bastille Day in Paris, France, July 11, 2017. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds fly by Mont Saint-Michel, Normandy, France, July 11, 2017. The Thunderbirds flew over several historic sites during a practice fly by of Paris, France for Bastille Day. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds fly over fields in Paris, France during a practice procession of Bastille Day, July 11, 2017. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds fly off coast of Normandy Beach, Normandy, France, July 11, 2017. The Thunderbirds flew over several historic sites during a practice fly by of Paris, France for Bastille Day. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)

The U.S. Air Force Thunderbirds receive aerial refueling from a U.S. Air Force KC-135 Stratotanker assigned to the 100th Air Refueling Wing, Royal Air Force Mildenhall, England, July 11, 2017. (U.S. Air Force Photo by Tech. Sgt. Christopher Boitz)