Today's U-boat terror makes this the year's timeliest picture!
A German submarine is sent to the Orkney Isles in 1917 to sink the British fleet.
1957
1943
1980
1956
2002
2020
1981
1995
1971
1960
1955
2000
1966
1953
1977
1965
1958
1962
1990
