# Mussolini declares war on France and Britain on 10 June 1940

Date: 1940

## The fact

On 10 June 1940 [Mussolini](/people/benito-mussolini) declared war on France and Britain from Palazzo Venezia, opening Italian fronts that the country could not sustain.

It is one event.

## Context

Hitler had already overrun France. This is a jackal entry, then a series of failed campaigns. Soldiers and civilians paid.

Benito Mussolini’s documented role is bounded by other offices and collaborators named in the sources below. Sharing a field with them is not a reason to drop a documented act, and it is not a reason to assign later consequences done in the name after death.

Named person as heading of the dated public instrument. Later editors, museums, printers, or offices share publication. Complex where later carriers date the row.

## Evidence and sources

Camera/government chronology and Britannica independently date 10 June 1940.

Official or archival record: Camera dei Deputati — historical portal (https://storia.camera.it/; Camera dei Deputati).

## Significance

Declaring a world war the state was not ready to fight is a humanitarian-harm path of high confidence.

1940 is not the Greek disaster as a separate operational row, but it opens it.

Declaring a world war the state was not ready to fight is a humanitarian-harm path of high confidence.

## What is established and what is not

Established: declaration of war 10 June 1940. Not established: that a different [Italian government](/organizations/italian-government) would have stayed out forever.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Established here: a sourced, dated public instrument with a named contribution by Benito Mussolini.

What would change the picture: a contradictory original with a different date, signatory, or non-occurrence; a demonstrated forgery; or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of other causes.

Contribution type is direct. They are not a public rating.

## People

- Benito Mussolini: https://factrail.ai/people/benito-mussolini

## Drivers

- Humanitarian Access: https://factrail.ai/drivers/humanitarian-access

## Sources

- https://storia.camera.it/
- https://www.britannica.com/biography/Benito-Mussolini

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/mu-1940-war-entry