On the morning of August 15, 1940, as thousands of pilgrims gathered on the island of Tinos to celebrate one of the most important days in the Greek Orthodox calendar, an explosion shattered the calm of the harbor.

The Greek light cruiser Elli, anchored off Tinos for the celebrations of the Dormition of the Virgin Mary, had been struck by a torpedo.

Behind the attack was the Italian submarine Delfino, commanded by Giuseppe Aicardi.

The sinking would become one of the defining moments in modern Greek history — an act of aggression that came just over two months before Italy formally invaded Greece on October 28, 1940.

Eighty-six years later, the memory of the Elli remains inseparable from August 15 on Tinos.

The Attack on a Day of Celebration

The Elli had sailed to Tinos to take part in the annual religious celebrations honoring the Virgin Mary.

The island was packed with pilgrims when the Delfino launched its torpedoes.

One struck the Greek warship, causing a powerful explosion and fire. The damage was devastating and the vessel eventually sank.

Nine members of the crew were killed and dozens were injured.

Other torpedoes fired during the attack missed the Elli and exploded near the harbor, adding to the shock and panic on an island crowded with civilians for the religious festival.

Greece Knew Who Was Behind the Attack

The attack did not come out of nowhere.

Relations between Greece and Benito Mussolini’s Italy had been deteriorating, while Italian pressure in the region had been steadily increasing.

Evidence recovered after the attack pointed to an Italian submarine.

The Greek government, however, initially chose not to publicly identify Italy as the aggressor. Greece was still formally neutral, and Athens was seeking to avoid giving Rome an immediate pretext for war.

That restraint would not prevent what followed.

On October 28, 1940, Italy delivered its ultimatum to Greece and launched its invasion from Italian-occupied Albania.

The sinking of the Elli, which had occurred 74 days earlier, was now seen for what it had been: a dramatic warning of the war that was coming.

A Ship That Became a National Symbol

The Elli was more than a warship lost in an enemy attack.

The circumstances of its sinking transformed it into a powerful national symbol.

It was attacked without a declaration of war, on one of the most sacred days of the Greek Orthodox calendar, off an island filled with pilgrims.

The image of the Elli burning and sinking outside Tinos became deeply embedded in Greece’s collective memory.

For generations of Greeks, its name has remained associated with the tense months before the Greco-Italian War and with the determination that would come to define Greece’s response to the Italian invasion.

August 15 on Tinos: Faith and Remembrance

Every year, Tinos commemorates both the great religious feast of the Virgin Mary and the sailors who lost their lives aboard the Elli.

The two events have become intertwined in the island’s identity.

Alongside the Divine Liturgy and the procession of the icon of Panagia Evangelistria, official ceremonies honor the victims of the 1940 attack.

Representatives of the state and the Armed Forces traditionally travel to the waters where the Elli sank to lay wreaths in memory of the dead.

It creates a striking contrast unique to Tinos.

On land, thousands gather in an expression of faith and devotion.

A short distance away, at sea, Greece remembers the morning when a religious celebration was suddenly transformed into a moment of national tragedy.

Eighty-six years have passed, but the sinking of the Elli remains one of the most powerful memories associated with August 15 in Greece.