An Italian submarine torpedoes and sinks the Greek cruiser ''Elli'' at Tinos harbour during peacetime, marking the most serious Italian provocation prior to the outbreak of the Greco-Italian War in October.

World War II: Greece rejects Italy's ultimatum. Italy invades Greece through Albania, marking Greece's entry into World War II.

World War II: Following the initial Italian invasion, Greek troops counterattack into Italian-occupied Albania and capture Korytsa.