Twenty three year old George Washington accompanied Major General Edward Braddock (who couldn't take good advice when it was offered)  in 1755 as an aid-de-camp for the expedition against the French Fort Duquesne. He developed a friendship with Captain Robert Orme, who was also an aid to the General.  Braddock was wounded and later died at the Battle of Monongahela . Orme was also wounded, leaving Washington the only person left to distribute the General's orders.
This later became known as Braddock's Defeat .