Last weekend saw the annual Aviation Nation Air and Space Expo at Nellis Air Force Base.

Located outside of Las Vegas, Nevada, Nellis has close ties to its neighboring city. Following the deadly mass shooting in Las Vegas in October, last weekend’s air show commemorated and honored the city and the shooting’s victims.

The show also featured US Air Force history, as the Air Force celebrates its 70th anniversary. About 400,000 people were expected to visit the two-day expo.

“This is freaking awesome. It really shakes you in your boots,” one observer told the Las Vegas Review-Journal. “It is rare that you get to see this stuff.”

Here’s what it was like inside the Aviation Nation Air and Space Expo: