Grasping Reality on TypePad, by Brad DeLong

First World War.com: Primary Documents: Paul von Hindenburg's Army Order Following the German Attack on Warsaw, 27 November 1914:

In the course of severe fighting lasting several days my troops have brought to a standstill the offensive of a numerically superior Russian army.

[Note: The Army Order reproduces a telegram from the Kaiser, in which the latter, after congratulating the commander on his new success and that of his troops, thanks him for protecting the eastern frontier.  The Kaiser adds that he cannot better express his thanks than by promoting the General to the rank of Field Marshal.]

I am proud at having reached the highest military rank at the head of such troops.  Your fighting spirit and perseverance have in a marvellous manner inflicted the greatest losses on the enemy.

Over 60,000 prisoners, 150 guns and about 200 machine guns have fallen into our hands, but the enemy is not yet annihilated.

Therefore, forward with God, for King and Fatherland, till the last Russian lies beaten at our feet.  Hurrah!"