Active warfare throughout recorded history has predominantly involved male combatants, however women have also contributed to military activities including as combatants. The following list describes women known to have participated in military actions in the latter half of the 18th century.
1770-1771: Margareta Reymers serve in the Dutch navy dressed as a man: she is discovered by her pregnancy 
1772: Mademoiselle de Guignes and Mademoiselle d'Aguillon fight a duel in France.
1775: On Dec. 11, 1775, Jemima Warner was killed by an enemy bullet during the siege of Quebec. Mrs. Warner had originally accompanied her husband, PVT James Warner of Thompson’s Pennsylvania Rifle Battalion, to Canada because she feared that he would become sick on the campaign trail and she wanted to nurse him. When PVT Warner eventually died in the wilderness en route to Quebec, Mrs. Warner buried him and stayed with the battalion as a cook.
November 16, 1776: Margaret Corbin assists her husband in manning the cannons while fighting the British in battle in the American Revolutionary War. When her husband is killed, she mans the cannons alone. She later became the first woman to earn a military pension.
1778: Molly Pitcher (born Mary Ludwig in 1754) married John Hays in 1769. Her husband fought for the Continental Army at the Battle of Monmouth (New Jersey) on June 28, 1778. During the battle, she brought pitchers of water to her husband and fellow soldiers, thus earning the appellation Molly Pitcher. When her husband succumbed to exhaustion, she picked up his rifle and fought against the British.
1781: Kate Barry warns the American militia that the British were approaching before the Battle of Cowpens. Her warning gives the colonists enough time to prepare and win the battle.
1782: Bartolina Sisa, an Aymara woman who led an indigenous uprising against the Spanish in Bolivia, is captured and executed.
1782-1783: Deborah Sampson serves in the American army during the American Revolutionary War while disguised as a man. She is the first known American woman to join the military, the first to fight in combat, and the first to receive a military pension.
1785: According to Thai legend, Chan and Mook, two sisters, help repel a Burmese invasion of Thailand by dressing as male soldiers and rallying the troops.
1787-1807: A woman serves twenty years in the British Marines under the name "Tom Bowling"
1787 : The wife of the German colonel Schutz is reported to have accompanied her spouse dressed as a male in warfare and having been wounded two times in Russian service. 
1788-1790 : After the war between Russia and Sweden, several of the soldiers decorated in the Swedish army are discovered to be women in disguise. One of them is Brita Hagberg, who enlisted in search of her husband; she is given a military pension.
1788-1790 : During the Russo-Swedish war, Anna Maria Engsten, after a battle at sea, singlehandedly steers one of the boats back to Sweden after having been left alone onboard after its evacuation; she is decorated for bravery at sea.
1788-1790 : During the Battle of Svensksund, Dorothea Maria Lösch takes command of a Swedish ship and is revarded with the rank of captain of the Swedish fleet 
1792: Eight thousand women are estimated to have served openly in the French army in informal local defense troops (though not in the battle fields) between 1792 and 1794. Women were forbidden from joining the army 1795 and the female soldiers are encouraged to "return to their homes".
1792: Mary Anne Talbot serves as a drummer boy in the British army for two years.
1792: Lady Braddock and Mrs. Elphinstone fight a duel in England.
1792-1799: Angelique Brulon serves in the French army in Corsica. Although she initially disguises her self as a man, she is eventually allowed to remain openly in her service because of her acknowledged military skill.