Era
20th century
11
19th century
7
Civil War, 1861-1865
5
18th century
3
1919-
2
1986-
2
2001-2009
2
Revolution, 1775-1783
2
1885-1945
1
1902-
1
1905-
1
1906-1945
1
1912-1945
1
1912-2006
1
1917-2014
1
1918-2001
1
1919-1987
1
1921-
1
1921-1945
1
1933-2018
1
1935-
1
1937-2006
1
1938-
1
1942-
1
1945-1989
1
1952-
1
1979-1991
1
1980-
1
1989-
1
1991-2003
1
21st century
1
Civil War, 1999-2003
1
Japanese occupation, 1942-1945
1
Occupation, 1939-1945
1
Ottoman Empire, 1288-1918
1
Siege, 1780
1
Vietnam War, 1961-1975
1