ranked list, engagements per year

The busiest years

The sixty years with the most placed engagements in the atlas, with the war that fills each and its best-known battles.

Engagements by decade since AD 1000

One bar per decade, coloured by era; the ancient and early medieval centuries are sparser and are counted on the century pages.

The busiest years

	Year	Engagements	Largest war that year	Best known
1	1944	447	World War II	Normandy landings, Battle of the Bulge, Operation Overlord
2	1945	361	Pacific War	atomic bombings of Hiroshima and Nagasaki, Battle of Berlin, Battle of Iwo Jima
3	1943	274	World War II	Battle of Kursk, Allied invasion of Sicily, Italian Campaign
4	1863	250	American Civil War	Battle of Gettysburg, Battle of Chancellorsville, Battle of Chickamauga
5	1942	236	World War II	Battle of Stalingrad, Battle of Midway, Operation Torch
6	1864	231	American Civil War	Battle of Cold Harbor, Sherman's March to the Sea, Battle of the Wilderness
7	1918	213	World War I	Spring Offensive, Hundred Days Offensive, Second Battle of the Marne
8	1941	212	World War II	Operation Barbarossa, Attack on Pearl Harbor, Siege of Leningrad
9	1862	179	American Civil War	Battle of Antietam, Battle of Fredericksburg, Second Battle of Bull Run
10	1914	161	World War I	First Battle of the Marne, Battle of Tannenberg, Caucasus campaign
11	1940	158	World War II	Battle of Britain, Battle of France, Dunkirk evacuation
12	1793	157	War in the Vendée	Siege of Toulon, Battle of Neerwinden, Battle of Hondschoote
13	1813	152	War of the Sixth Coalition	Battle of Leipzig, Battle of Vitoria, Battle of Lützen
14	1916	143	World War I	Battle of Verdun, Battle of the Somme, Battle of Jutland
15	1915	140	World War I	Gallipoli Campaign, Second Battle of Ypres, Serbian campaign
16	1809	132	Peninsular War	Battle of Wagram, Battle of Aspern-Essling, Battle of Talavera
17	1794	132	War of the First Coalition	Battle of Fleurus, Battle of Racławice, Glorious First of June
18	1939	125	World War II	1939 Invasion of Poland, Soviet invasion of Poland, Battle of the Atlantic
19	1814	121	War of the Sixth Coalition	Battle of Paris, Burning of Washington, Battle of Champaubert
20	1812	114	Napoleonic Wars	French invasion of Russia, Battle of Borodino, Battle of Berezina
21	1917	112	World War I	Battle of Caporetto, Third Battle of Ypres, Battle of Cambrai
22	1799	86	War of the Second Coalition	First Battle of Abukir, Siege of Acre, Battle of Mount Tabor
23	1808	86	Peninsular War	Battle of Bailén, Battle of Somosierra, Battle of Tudela
24	1920	83	Polish–Soviet War	Battle of Warsaw, Battle of Maysalun, Red Army invasion of Azerbaijan
25	1866	82	Austro-Prussian War	Battle of Königgrätz, Battle of Lissa, Battle of Custoza
26	1795	82	French Revolution	Battle of Krtsanisi, Capture of the Dutch fleet at Den Helder, Battle of Groix
27	1796	81	French Revolution	Battle of Lodi, Battle of the Bridge of Arcole, Battle of Montenotte
28	1861	79	American Civil War	Battle of Fort Sumter, First Battle of Bull Run, Battle of Wilson's Creek
29	1865	78	American Civil War	Battle of Appomattox Court House, Battle of Five Forks, Appomattox campaign
30	1798	74	Irish Rebellion of 1798	Battle of the Nile, French invasion of Egypt and Syria, Battle of the Pyramids
31	1870	73	Franco-Prussian War	Battle of Sedan, Capture of Rome, Siege of Paris
32	1950	73	Korean War	Battle of Inchon, Battle of Chamdo, Battle of Changjin Reservoir
33	1967	73	Vietnam War	Operation Focus, Operation Junction City, Battle of Dak To
34	1919	71	Russian Civil War	Scuttling of the German Fleet in Scapa Flow, Battle of Cēsis, Greek landing at Smyrna
35	1849	68	Hungarian Revolution of 1848	Battle of Novara, Battle of Chillianwala, Battle of Temesvár
36	1815	66	Neapolitan War	Battle of Waterloo, Battle of New Orleans, Battle of Ligny
37	1948	63	1948 Arab–Israeli War	Operation Danny, Operation Kraai, Operation Hiram
38	1937	62	Spanish Civil War	Marco Polo Bridge incident, Bombing of Guernica, Battle of Shanghai
39	1781	60	American Revolutionary War	Siege of Yorktown, Battle of the Chesapeake, Battle of Cowpens
40	1644	60	First English Civil War	Battle of Marston Moor, Battle of Shanhai Pass, Battle of Freiburg
41	1848	58	First Italian War of Independence	Battle of Custoza, Battle of Goito, Skirmish of Pastrengo
42	1936	58	Spanish Civil War	Siege of Madrid, Siege of the Alcázar, Battle of Majorca
43	1968	57	Vietnam War	Tet Offensive, Battle of Khe Sanh, Battle of Karameh
44	1991	57	Gulf War	Battle of Vukovar, Siege of Dubrovnik, Battle of Khafji
45	1811	56	Peninsular War	Battle of Tippecanoe, Battle of Albuera, Battle of Lissa
46	1900	53	Second Boer War	Battle of Spion Kop, Battle of Kousséri, Dervish War
47	1821	51	Greek War of Independence	Battle of Carabobo, Siege of Baghdad, Battle of Alamana
48	1966	50	Vietnam War	Battle of Long Tan, Samu Incident, Operation Hastings
49	1831	50	November Uprising	Ten Days' Campaign, Battle of Ostrołęka, Battle of Olszynka Grochowska
50	1643	49	First English Civil War	Battle of Rocroi, Battle of Tuttlingen, First Battle of Newbury
51	1810	49	Peninsular War	Battle of Grand Port, Siege of Cádiz, Battle of Bussaco
52	1868	48	Boshin War	Battle of Toba-Fushimi, Battle of Ueno, Battle of Awa
53	1938	47	Spanish Civil War	Battle of Lake Khasan, Battle of the Ebro, Battle of Wuhan
54	1806	45	Napoleonic Wars	Battle of Jena–Auerstedt, British invasions of the River Plate, Battle of Lübeck
55	1838	45	First Carlist War	Battle of Blood River, Cincomarzada, Battle of Veracruz
56	1921	44	Uprising in West-Hungary	Red Army invasion of Georgia, Battle of Annual, Battle of Sakarya
57	1780	44	American Revolutionary War	Battle of Camden, Battle of Cape St. Vincent, Battle of Waxhaws
58	1779	43	American Revolutionary War	Great Siege of Gibraltar, Siege of Savannah, Battle of Grenada
59	1912	42	First Balkan War	Battle of Kumanovo, Siege of Scutari, Battle of Adrianople
60	1982	42	Falklands War	Operation Rosary, Siege of Beirut, Operation Black Buck

Sources and method

Counts are placed engagements dated at least to the year. The decade chart shows the whole span.