although the German troops met with success against the invading Russian troops, in what way did these battles hurt the Germans?

Answer 1

Which war?

Answer 2

ww1

Answer 3

The attack by Russia set up a second front which weakened Germany's efforts on the Western Front. Germany lost men and supplies.

http://www.historyplace.com/worldhistory/firstworldwar/index-1914.html

Answer 4

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