Complex sentence: In the 1940s, Pisagua became the site of wartime internment for citizens of enemy nations when Chile entered the Second World War on the Allied side, the complex was turned into a concentration camp for Chilean communists under President Gabriel González Videla in 1947-1948.
Split into simpler sentences: In the 1940s, Pisagua became the site of wartime internment for citizens of enemy nations when Chile entered the Second World War on the Allied side. The complex was turned into a concentration camp for Chilean communists under President Gabriel González Videla in 1947-1948.