Palani Paahana, left, Marine Corps Air Ground Combat Center Range Sustainment Branch, talks about ordnance used in military training on the base with a visitor to the Combat Center’s static display outreach booth at King of the Hammers in Johnson Valley, Feb. 7, 2018. King of the Hammers is King of the Hammers is the largest off-road racing and rock-crawling event in North America. (Marine Corps photo by Kelly O’Sullivan) - Palani Paahana, left, Marine Corps Air Ground Combat Center Range Sustainment Branch, talks about ordnance used in military training on the base with a visitor to the Combat Center’s static display outreach booth at King of the Hammers in Johnson Valley, Feb. 7, 2018. King of the Hammers is the largest off-road racing and rock-crawling event in North America. (Marine Corps photo by Kelly O’Sullivan)