Era
20th century
2,378
1939-1945
1,958
1900-1999
1,096
1933-1945
552
World War, 1939-1945
319
1939 - 1945
251
German occupation, 1940-1945
213
1918-1945
197
1889-1945
115
1882-1945
111
1874-1965
87
1945-
85
German occupation, 1941-1944
75
1936-1945
74
1900 - 1999
68
Bombardment, 1945
67
Occupation, 1939-1945
61
Japanese occupation, 1942-1945
57
1878-1953
54
1914-1945
53
1912-1945
46
1945-1953
38
1945-1955
38
1917-1945
36
1890-1969
31
1922-
31
1945-1989
31
1880-1964
30
1921-
28
1937-1945
27
1876-1958
25
1891-1944
25
1925-
25
1926-1945
25
1918-
24
21st century
23
George VI, 1936-1952
22
Axis occupation, 1941-1945
21
1884-1972
20
1922-1945
20
1923-
20
1885-1945
19
1900-1945
19
1924-
19
1925-1953
19
1945-1990
19
1883-1945
18
1919-
18
1938-1945
18
1940-1944
18
more ...