Wars_In _History

 The Trojan War (approx. 1194-1184 BC)

Greco-Persian Wars (499-450 BC)

The Peloponnesian War (431-404 BC)

Macedonian Succession Wars (323-275 BC)

Punic Wars (264-146 BC)

The Maccabean Revolt (166-129 BC)

Jewish Revolts (66-117)

The Three Kingdoms (China) (220-280) note 

The Crusades (1095-1291)

Turkish-European Wars (1071-1683) note 

Ottoman Rise (Early Ottoman conquests in late middle ages)

The Fall of Constantinople (1453)

Battle of Lepanto (1571)

Siege of Vienna (1683)

European Reconquest (Austria&Russia vs Ottomans Seventeenth-Nineteenth centuries)

The Hundred Years War (1337-1453)

Wars of the Roses (1455-1485)

Italian Wars (1494-1559)

The Eighty Years' War (1568-1648)

The Dutch-Portuguese War (1602-1640)

Thirty Years' War (1618-1648)

English Civil War (1642-1649), a part of the Three Kingdoms Wars (1639-1653)

Hanover-Stuart Wars (Seventeenth and Eighteenth century).

Anglo-Dutch Wars (1652-1781)

The Great Northern War (1700-1721)

War of the Spanish Succession (1701-1714)

War of the Austrian Succession (1740-1748)

Seven Years' War (1754-1763)

The American Revolution (1775-1783)

The Napoleonic Wars (1789-1815)

War of 1812 (1812-1815)

War of the Confederation (1836-1839)

Mexican-American War (1846-1848)

Wars of Italian Independence (1848-1866)

The Crimean War (1853-1856)

Sepoy Rebellion (1857)

The American Civil War (1861-1865)

The Chincha Islands War (1864-1866)

War of the Triple Alliance (1864-1870)

Austro-Prussian War (1866)

Franco-Prussian War (1870-1871)

Anglo-Zulu War (January-July 1879)

War of the Pacific (1879-1883)

The River War (1881-1898)

First Sino-Japanese War (1894-1895)

Spanish-American War (1898)

The Second Boer War (1899-1902)

Russo-Japanese War (1904-1905)

The Mexican Revolution (1910-1921)

World War I (1914-1918)

The Poppy

Russian Civil War (1917-1922)

Polish-Soviet War (1919-1921)

The Irish Revolution (War of Independence 1919-1921, Civil War 1922-1923)

Chinese Civil War (Initial campaigns 1927-1936, intermittent fighting 1941-1945, full-scale war 1946-1949.)

The Chaco War (1932-1935)

Spanish Civil War (1936-1939)

Second Sino-Japanese War (1937 - 1945)

World War II (1939-1945)

The Cold War: (c.1945-c.1990. Historians disagree on the precise date it started)

The Korean War (1950-1953 for the main fighting, although technically still ongoing and best described as a high tension Cold War in East Asia)

The Indochina Wars (1946-1975)

The Vietnam War (1959-1975)

Bay of Pigs Invasion (April 17-April 19 1961)

Operation Urgent Fury (October-December 1983), aka the US invasion of Grenada.

Soviet Invasion of Afghanistan (1979-1989)

Arab-Israeli Conflict (1948-)

The Indo-Pakistan Conflict (1947-)

The Troubles (1968-1998)

The Football War (July 1969)

Iran–Iraq War (1980-1988), also known as the Gulf War.

The Falklands War (or Malvinas War, to some) (2 April-20 June 1982)

Sri Lankan Civil War (1983-2009)

First Gulf War (1990-1991) also known as the Second Gulf War

The Yugoslav Wars (1991-2001)

The Chechnya Wars (First War 1994-1996 and Second War 1999-2009)

The Congo Wars (1996-2003)

The War on Terror (2001-, includes Afghanistan and Iraq wars)