Marine Corps Air Station Yuma was the busiest air station in the United States Marine Corps when the Second Great Depression came upon us all. It sported excellent year-round flying conditions and thousands of acres of open terrain all round for conducting training missions or tests. The powerful F-35B Lightning fighters covered the Old Border as Marines from all over the nation passed through the command. As with most American bases of the time, most young officers spent their time training or providing aggressor forces to train others. They never expected to have to defend the base itself from ground attack. Everybody knew the Mexican military was smart enough not to start anything with America after all. They were right. Despite contemporary reports to the contrary, the Mexican military did not attack MCAS Yuma.