High Quality Content by WIKIPEDIA articles! The Ukrainian Canadian internment was part of the confinement of "enemy aliens" in Canada during and for two years after the end of the First World War, lasting from 1914 to 1920. About 5,000 Ukrainian men of Austro-Hungarian citizenship were kept in twenty-four internment camps and related work sites, also known, at the time, as concentration camps. Many were released in 196 to help with the mounting labour shortage in the Prairie provinces. Another 80,000 were registered as "enemy aliens" and obliged to regularly report to the police. Those interned had whatever little wealth they owned confiscated.