SprueStack Zero Hour: WW2 day by day
21 June 1940
What happened on this day in the Second World War, from 1939 to 1945, with a source for every entry.
About this page
Each day we list events from the Second World War that happened on that date, from 1939 to 1945. Every entry names its source and links to it, so you can read further. Entries are sourced and machine-screened before they go up, a subset is human-reviewed, and we add more over time.
3 sourced entries for this date.
Join us on Discord (opens external site)
Entries
-
-
Mediterranean Theater
THOR mission records show at least 0 Allied sorties (1 recorded unit missions) in the Mediterranean Theater on 1940-06-21, flown by RAF. Targets included LIBYA.
Source US Air Force THOR (opens external site)
THOR is a secondary compilation with known gaps, not a complete record.
-
Italian invasion of France
On 21 June 1940, Ciano recorded in his diary that Mussolini felt humiliated by the invasion of France as "our troops have not made a step forward.
Sources listed with each entry. Spotted an error? Tell us.
21 June in other years 19411942194319441945
Talk about it
Discuss each day's entries and suggest sources in the Zero Hour community.