16/06/2026
Did you know that even after Ireland gained independence, Britain still kept control of key Irish ports?
When the Anglo-Irish Treaty was signed in 1921, many people believed British rule in Ireland was finally over. But there was one major exception.
Britain retained control of three strategically important naval bases known as the Treaty Ports:
⚓ Berehaven, Co. Cork
⚓ Cobh (Queenstown), Co. Cork
⚓ Lough Swilly, Co. Donegal
Why?
Britain's leaders were deeply concerned about their naval security. At the time, they viewed Ireland's west and south coasts as vital defensive positions protecting Britain's shipping lanes and access to the Atlantic Ocean.
British negotiators argued that if another major war broke out, these ports would be essential for defending Britain from naval attack and protecting merchant vessels carrying food and supplies.
For many Irish nationalists, however, the continued British presence was a reminder that Ireland's independence was not complete. The issue remained controversial for years.
It wasn't until 1938 that the ports were finally handed back to Ireland following an agreement between the Irish government led by Éamon de Valera and the British government.
The timing proved significant. Just one year later, World War II began, and Ireland was able to maintain its policy of neutrality without foreign military bases operating on its territory.
What do you think?
Was Britain justified in retaining the ports for its own security, or should full control have passed to Ireland immediately in 1921?
