F-15s, the king of the skies for 3 decades, are participating in the drill in large numbers

Vigilant Ace F15s
U.S Air Force photo by Senior Airmnan Jessica H. Smith

F-35s and F-16s line up together to get into the air.

Vigilant Ace US:SK Air Force
U.S. Air Force photo by Senior Airman Colby L. Hardin

Six F-22s, rarely seen outside the US or Japan, add more stealth power to the exercise.

Vigilant Ace
U.S Air Force photo by Senior Airmnan Jessica H. Smith

18 F-35s in total are in South Korea.

Vigilant Ace F35s
U.S. Air Force photo by Tech. Sgt. Joshua Rosales

B-1 bombers are also being used in the drills.

vigilant Ace b1
Associated Press

Here a B-1 is accompanied by two F-16s, two F-15s, and 4 F-35s.

Vigilant Ace 18 US/South Korea Air Forces
Associated Press

While the drills will be held over US and South Korean Air Force bases, civilians will be able to see military jets do an occasional fly by

Vigilant Ace drills
U.S. Air Force photo by Tech. Sgt. Josh Rosales

Here, two F-16s from the US Air Force prepare for landing.

Vigilant Ace F 16
Associated Press

Electronic warfare capabilities, demonstrated by the EA-18G Growler, are also involved.

Vigilant EA 18G Ace Growler
Associated Press

Vigilant Ace will be a great chance to study how the F-35 will is able to perform with non-stealth aircraft, like these F-16s.

Vigilant Ace F 35:F16
U.S. Air Force photo by Tech. Sgt. Josh Rosales

There's a lot of F-16s at the drill.

F 16 Fighting Falcon
U.S. Air Force/Staff Sgt. Franklin R. Ramos/Handout via REUTERS

The drills, of course, are not just limited to the ground. Here, South Korean soldiers load up on a vehicle during their shift change at Osan Air Base.

Vigilant Ace Guards
U.S. Air Force photo by Staff Sgt. Alex Fox Echols III

The massive amount of airpower, however, is where most of the attention is going.

Vigilant Ace from above
Associated Press