The origin of the russian revolution of 1905 can trace its beginning to the sino-japanese war world war i russo-japanese war invasion by the ottoman empire

The origin of the 1905 revolution goes back to the recently-concluded Russo-Japanese War, in which Japan placed a serious check on Russia's power to expand in East Asia. Many Russians saw this outcome as a source of humiliation, and supported an effort to remove the Tsar because of it.

Russo-Japanese war

Explanation:

Odyssey review question.

i believe it is the second one.   if correct plz mark brainliest.