Battle

A battle is a fight between two or more groups where each group is trying to defeat (beat) the others.  Battles are most often fought during wars.  A small battle fought by only a small part of the armies is called a skirmish.  Series of battles are called military campaigns.  The ground on which a battle is fought is called a battlefield.Department of Defense Dictionary of Military and Associated Terms, ed. Barry Leonard (Department of Defense; Joint Publication 1-02), p. 52

Battles can very important, for example the 1389 Battle of Kosovo, which was a draw in military terms, and the 1798 Battle of the Nile which the French lost, changed the history of  Europe and the world. 

 Land battles 
300 Spartans at Thermopylae: Battle of Thermopylae 480 BC
Siege of Carthage: 149146 BC
Battle of Hastings – 1066
Battle of Kosovo – 1389
Battle of Waterloo – 1815
The Battle of Trenton 1776 saved the American Revolutionary cause.
Battle of Gettysburg – 1863
Battle of Verdun – 1916
Battle of the Bulge – 1944
The firebombing of Tokyo on the night of March 9-10, 1945.
Battle of Inchon – 1950, Korean War
Tet Offensive – 1968, Vietnam War

Naval battles
Battle of Trafalgar – 1805
Battle of Midway – 1942

 Related pages 

 Siege

 References