I want to know the answer to the following question:
What document established the border between Russia and Estonia?
All the background I'm provided with is that "From 1920 to 1945, Estonia's border with Russia, set by the 1920 Tartu Peace Treaty, extended beyond the Narva River in the northeast and beyond the town of Pechory (Petseri) in the southeast.". Is that enough to answer the question?
Answer: yes