Narva River
On 2 February 1920, the Peace Treaty of Tartu was signed by the Republic of Estonia and RSFSR. At this point, the Bolshevist regime had not been recognized by any Western power. The terms of the treaty stated that Russia renounced in perpetuity all rights to the territory of Estonia. The agreed frontier corresponded roughly with the position of the front line at the cessation of hostilities. In particular, Estonia retained a strategic strip to the east of the Narva river ("Narvataguse") and Setumaa in the southeast, areas which were lost in early 1945 – shortly after Soviet troops had taken control of Estonia, when Moscow transferred the land East of the Narva River and most of Petseri County to the RSFSR.