Commanders (A): Paul von Hindenburg, Erich Ludendorff, Max Hoffmann, Hermann von François
Commanders (B): Alexander Samsonov, Yakov Zhilinsky
Casualties: approx. 21–30 August:
13,873+ 1,726+ killed|7,461 wounded| 4,686 missingOther estimate:
about 30,000 dead and wounded70,000–120,219 killed, wounded or captured
See