Category
page 1Conflicts in 1800
French Revolutionary Wars
1792–1802 series of conflicts between the French Republic and several European monarchies
French invasion of Egypt and Syria
1798–1801 campaign during the War of the Second Coalition
War of the Second Coalition
1798–1802 set of battles between the French Republic and the neighbouring monarchies

Quasi-War
The Quasi-War was an undeclared war from 1798 to 1800 between the United States and the French First Republic. It was fought almost entirely at sea, primarily in the Caribbean and off the East Coast of the United States, with minor actions in the Indian Ocean and Mediterranean Sea.
Battle of Hohenlinden
1800 battle during the War of the Second Coalition
Battle of Heliopolis
1800 battle during the French Campaign in Egypt and Syria
Siege of Malta
1798 military blockade of Malta by France
Gabriel
American enslaved person
Battle of Stockach
battle fought on 3 May 1800
War of the South
1799-1800 armed conflict in French Saint Domingue
Battle of Pozzolo
1800 battle
Battle of Höchstädt
1800 battle

The Second Italian Campaign
Bonaparte's campaign in Italy (1800)
Polygar War
1799–1805 conflicts between the British East India Company and Polygars in India
Battle of Messkirch
1800 battle
USS Constellation vs La Vengeance
1800 action between US and French frigates
Fries's Rebellion
armed tax revolt among Pennsylvania Dutch farmers between 1799 and 1800
Action of 1 January 1800
1800 naval battle of the Quasi War
Battle of Niakhura
1800 battle
Battle of the Malta Convoy
part of the French Revolutionary Wars, the Siege of Malta (1798–1800)
Battle of Biberach
1800 battle during the War of the Second Coalition
Battle of Neuburg
1800 battle of the war of the second coalition
Italian and Swiss expedition
1799 Austro–Russian expedition during the War of the Second Coalition