Los Alamitos Army Air Field (KSLI) is a military airfield located in Los Alamitos, Orange County, California, primarily serving the California Army National Guard and the United States Armed Forces. The facility is situated on the Joint Forces Training Base Los Alamitos, a major military installation shared by multiple branches of the U.S. military. The airfield supports rotary-wing and fixed-wing military aviation operations and is not open to scheduled commercial passenger service. It plays an important role in training, logistics, and emergency response missions in the Southern California region. Due to its military nature, the airfield has no commercial terminals, airlines, or standard passenger infrastructure. It has historically served as a staging ground during natural disasters and other large-scale emergencies affecting California.