The Battle of Green Spring took place near Green Spring Plantation in James City County, Virginia during the American Revolutionary War. On July 6, 1781 United States Brigadier General "Mad" Anthony Wayne, leading the advance forces of the Marquis de Lafayette, was ambushed near the plantation by the British army of Earl Charles Cornwallis in the last major land battle of the Virginia campaign prior to the Siege of Yorktown.
Following a month of marching and countermarching in central Virginia by Cornwallis and Lafayette, Cornwallis in late June moved to Williamsburg, where he received orders to move to Portsmouth. Lafayette followed Cornwallis fairly closely. On July 4, Cornwallis departed Williamsburg for Jamestown, planning to cross the James River en route to Portsmouth. Lafayette believed he could stage an attack on Cornwallis's rear guard during the crossing.
Cornwallis anticipated Lafayette's idea, and laid an elaborate trap. General Wayne's forces were very nearly caught in the trap, and only a bold bayonet charge against the numerically overwhelming British enabled his forces to retreat. Cornwallis did not follow the victory with pursuit, instead following his plan to cross the river. The action reinforced the perception among contemporaries that justified the moniker "Mad" to describe Wayne, although opinion on the merits of his actions was divided.