YOKOSUKA NAVAL BASE, Japan — Bodies lay strewn about the floor as emergency medical personnel and firefighters worked furiously to save the "injured."

"We’re assessing our response and capabilities in the event of a natural disaster," Lt. David Johnston, Yokosuka’s training and readiness officer, said Friday during Reliant Gale, the annual typhoon readiness exercise.

The command-mandated drill kicked off Monday, progressing through all four Pacific tropical cyclone conditions of readiness throughout the week.

Friday represented the recovery portion of the exercise, with a simulated roof collapse at Yokosuka’s Thew Gym.

Johnston said a tabletop portion of the exercise is the only required part, but they chose to execute a full-scale field scenario.

"You can always estimate response times," he said. "But conducting exercises like this gives you a clear picture of where you’re at."

Johnston said it was the first time the base has had an interagency response of this magnitude. Fire, medical, security, public works, regional dispatch center and emergency operations center personnel all participated in the drill.

"It’s important to know our preparedness in response to a natural disaster," he said.