The Battle of Gettysburg ended exactly 150 years ago and the bloody clash still holds important lessons for military and business leaders, writes Jeffrey D. McCausland. The battle was won in part because a Union cavalry commander, John Buford, took responsibility for defending a key crossroads early on, and it was lost in part because Robert E. Lee was unable to suppress his belief that his army couldn't be beaten. "As we prepare for the future, leadership is as critical to any organization today as it was during a few days [in] 1863," McCausland writes.

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