What front saw fighting between Russian German and austro-Hungarian troops?

The front that saw fighting between Russian, German, and Austro-Hungarian troops was primarily the Eastern Front during World War I. This front stretched from the Baltic Sea in the north to the Black Sea in the south, involving extensive combat as these powers clashed over territory and influence. Major battles, such as the Battle of Tannenberg in 1914, highlighted the intense conflict and shifting dynamics between these nations. The Eastern Front was characterized by large troop movements and significant strategic engagements, differing from the trench warfare that dominated the Western Front.