Lithuania–Russia relations in Suvalkija, to the Soviet sphere of influence. The exchange of territories was also motivated by Soviet control of Vilnius: the Soviet Union could exert significant influence on the Lithuanian government, which claimed Vilnius to be its "de jure" capital. In the secret protocols, both Soviet Union and Germany explicitly recognized Lithuanian interest in Vilnius. Accordingly, by the Soviet–Lithuanian Mutual Assistance Treaty of October 10, 1939, Lithuania would acquire about one fifth of the Vilnius Region, including Lithuania's historical capital, Vilnius, and in exchange would allow five Soviet military bases with 20,000 troops to be established across Lithuania. After months
Name of Lithuania original word should have no suffix. A likely candidate is "Lietā". Because many Baltic ethnonyms originated from hydronyms, linguists have searched for its origin among local hydronyms. Usually such names evolved through the following process: hydronym → toponym → ethnonym. A small river not far from Kernavė, the core area of the early Lithuanian state and a possible first capital of the would-be Grand Duchy of Lithuania, is usually credited as the source of the name. This river's original name is Lietava. As time passed, the suffix -"ava" could have changed into -"uva", as the two are from the same