Era
20th century
46
21st century
28
1989-
4
19th century
4
1780-1831
3
18th century
3
1945-
3
1945-1955
2
1993-
2
Revolution, 1775-1783
2
active 6th century B.C.
2
1452-1519
1
1860-1890
1
1884-1962
1
1886-1950
1
1894-1954
1
1899-1964
1
1911-2000
1
1927-1997
1
1927-2019
1
1930-2004
1
1942-
1
1945-1953
1
1945-1989
1
1946-
1
1976-
1
1977-1981
1
1980-1989
1
1985-
1
1985-1991
1
1989-1993
1
1997-
1
2001-2009
1
2009-
1
2017-
1
2017-2021
1
Bombardment, 1918
1
Civil War, 2011-
1
Dhofar War, 1964-1976
1
Empire, 30 B.C.-284 A.D.
1
Intervention, 1968
1
Korean War, 1950-1953
1
Malayan Emergency, 1948-1960
1
Medieval, 500-1500
1
Revolution, 1789-1799
1
To 1500
1
To 500
1
War of 1812
1