How far did the Germans gone east (in Russia) during World War One?

Question

I am sorry. i just realized that the question i post the day before is supposed to be WW1 not WW2 but i am grateful for all the answers given :)

Answer 1

During World War I, Germany occupied the present-day Latvia and Estonia, most of the present-day Ukraine, a substantial part of the present-day Belarus, and some of the Southern Russia. Under the Treaty of Brest-Litovsk, Russia conceded the occupied territories to Germany and Austro-Hungarian empire.

Here's link to a map that shows occupied territories:

http://upload.wikimedia.org/wikipedia/commons/8/8a/Armisticebrestlitovsk.jpg

__________

Answer 2

Not very far. The Zar had a huge army. Germany and Austria very happy enough that they could keep Russia at bay.
Good leadership, better equipment and a sound strategy secured the eastern front. The plan was from the beginning on, to win in the west and hold the line in the east.
Russia fell due to internal problems not because it was overwhelmed by the Mittelmächte.

Answer 3

to the gates of Moscow

Answer 4

dono?