May 10 is an interesting date in military history.
On May 10, 1863, General Thomas "Stonewall" Jackson passed away as result of complications from being wounded in a friendly fire incident. Less than two months later, the last hopes of the Confederacy vanished on the fields of Gettysburg, and Jackson's absence was conspicuous.
On May 10, 1940, German forces began their invasion of the Low Countries and France.
On May 10, 1972, Randall "Duke" Cunningham became the last US Navy ace flying an F-4 in Viet Nam.