Irish War of Independence
British were detaining 263 men on Argenta, which was moored in Belfast Lough
Belfast, Northern Ireland
By February 1923, under the 1922 Special Powers Act the British were detaining 263 men on Argenta, which was moored in Belfast Lough. This was supplemented with internment at other land based sites such as Larne workhouse, Belfast Prison and Derry Gaol. Together, both the ship and the workhouse alone held 542 men without trial at the highest internment population level during June 1923.