VIRGINIA BEACH, Va. (WVEC) -- Hoping for the best, preparing for the worst. That was the idea behind an exercise today at Naval Air Station Oceana.

With a little more than a month to go until the big air show, Navy and civilian first responders practiced how they would react to an attack.

The scenario was, an assailant, possibly a terrorist, had gotten onto the base during the air show and released an unknown chemical agent into the air.

It fell to navy and local civilian first responders to save the day.

"In the military, we spend a lot of time training for things that we hope don't happen," said Oceana Commanding Officer, Captain Rich Meadows. "This is just one of those. It keeps our skills sharp."

Office of emergency Management Director Erin Sutton said exercises like this can save lives.

"Our relationship is top notch and it's so important that we integrate to respond and recover from an event," she said.

The Oceana Air Show featuring the Blue Angels is September 6 and 17. It's free and open to the public and once again, 13News Now is a proud sponsor.