HALO jumps are used to enter hostile territory undetected when threats to both Airmen and aircraft are expected.
Air Force Thunderbirds - Delta Roll
From the US Air Force Thunderbirds: "It's incredible to see and experience what our pilots are capable of doing with six F-16s in tight formation. It's absolutely amazing... seriously. And no, it doesn't EVER get old. This was shot from the back seat of Thunderbird 3, flown by Maj. Caroline Jensen (Right WIng)." Learn more about the USAF Thunderbirds at http://www.afthunderbirds.com/site/