sentences:  In the United Kingdom, Australia and the United States, many were interned.After the war, there was a great decline in this industry, and then, after Adolf Hitler and the Nazis started the Third Reich in the 1930s, the industry was forsaken, utterly.Aside from a very small amount of mining towards the end of the 18th century (iron ore, quicksilver) and coal mining (about 1860), the only mining that can be mentioned is limestone and basalt quarrying.