In addition to the Soviet Union, Jews from other Communist countries, such as East Germany and Romania, engaged in similar struggles and were also imprisoned. The term "prisoners of Zion" was extended over the years, and was also used to describe Jewish prisoners in dictatorships unrelated to the Soviet Union, who were arrested for pro-Israel activity or an attempt to encourage Jewish immigration to Israel. This name was given to Jews in Iraq, Morocco, Yemen and Ethiopia who were arrested for Zionist activities and activities to bring Jews to Israel, especially in the 1940s and 1950s.