The reason for separating the men is that they were all destined for the forced labor camps, "Trudarmii" (labor army). The German exiles coined this phrase, whereas Soviet documents only referred to "labor obligations" or "labor regulations." Men between the ages of 15 and 55 and, later, women between the ages of 16 and 45 were forced to do labor in the forests and mines of Siberia and Central Asia under conditions similar to that prevalent in the Gulag forced-labor camps.