The Riga offensive, also called the Battle of Jugla or the Battle of Riga, took place in early September 1917 and was last major campaign on the Eastern Front of World War I before the Russian Provisional Government and its army began disintegrating.

In March [O.S. February] 1917, the Russian Army formally ceased to be the Imperial Russian Army when Emperor Nicholas II abdicated and the Provisional Government became the governing authority. It was officially a caretaker government until September 1917, when the Russian Republic was proclaimed.