Glacier mountains and water from the melting ice
Well the use of trenches prolonged WWI because it was another kind of land warfare where most of the ground in which they were fighting consisted mostly trenches. These trenches protected them from most artillery and normal gun fire. So it was almost like a stalemate.
Could be described as Eastern Europe. Group of countries within the sphere of influence of the Soviet Union. Including Soviet Union itself and satellite countries: East Germany, Poland, Czechoslovakia, Romania, Bulgaria, Yugoslavia and Hungary
A microhistorian might document one day in a town that experienced particularly high unemployment levels, while a comparative historian might graph unemployment levels in several cities throughout the Great Depression
