September 21 in U.S. military history
1780: After deliberately weakening the defenses of Fort Arnold (now known as West Point), Hudson River, and other areas under
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World War II
September 20 in U.S. military history
1777: British Maj. Gen. Charles Grey launches a daring nighttime attack on Brig. Gen. Anthony Wayne’s Continental Army forces encamped
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September 19 in U.S. military history
1777: The Battle of Freeman’s Farm — the first engagement in the Battle of Saratoga — opens between Continental forces
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September 18 in U.S. military history
1862: A day after the bloody Battle of Antietam, Gen. George B. McClellan blows yet another opportunity to capture Gen.
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September 17 in U.S. military history
1862: The Battle of Antietam (Maryland) – the bloodiest single-day battle in American history – opens between Confederate Army forces
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