Avezzano concentration camp was an Italian assembly and detention camp set up in 1916 in the Abruzzo city of the same name during World War I, immediately after the 1915 Marsica earthquake that almost completely destroyed it decimating the population. The detention camp was reserved to about 15,000 prisoners from the Austro-Hungarian army, mainly of Czech–Slovak, Polish, German, and Hungarian nationalities; Romanians, who were gathered in the by the end of the conflict, had a garrison and a training camp in Avezzano. Mostly abandoned in 1920, a sector was reused in World War II to house Indian, English, New Zealand, and Pakistani war prisoners.