Here is an interesting article that the Economist Posted on the River Neisse.

 http://www.economist.com/node/2618236

The German-Polish border

A tale of two cities

“Almost nowhere else do Germans and Poles live so close to each other as in these twin cities on the River Neisse; almost nowhere else are leaders trying so hard to grow together. Yet though strong forces draw the cities together, much still drives them apart.

Guben and Gubin were once one city, known for its hats and its orchards. But in 1945 the allies settled on the Oder-Neisse line as the new western border of Poland, slicing through Guben. All Germans left the eastern part of the city, to be replaced by Poles, often refugees from eastern regions that became part of the Soviet Union.”

Continue to read:  http://www.economist.com/node/2618236