1938 Polish ultimatum to Lithuania three agreements covering rail transit, mail service, and river navigation had been concluded. The railroad, torn apart for several kilometers at the border, was repaired. A customs post was established in Vievis, and consulates were opened in Klaipėda and Vilnius. Lithuania closed the League for the Liberation of Vilnius and the Vilnius Foundation; the latter organization had given financial support to Lithuanian activities in the Vilnius Region. Nevertheless, Lithuania continued to claim Vilnius as its "de jure" capital. In May 1938 a new constitution was adopted, which echoed the previous constitution's statement that Vilnius was the permanent capital of Lithuania
Capital punishment in Lithuania the criminal code but was retained in the military law (). Article 14 of the military law provided for death penalty for eight crimes, mostly directed against the state, the military, or the officials, but also included armed robbery with murder. The provisional constitution of 1920 even spoke about the abolition of the death penalty. However, Lithuania with brief interruptions remained under the martial law until November 1938 when it was lifted due to German pressure in the months before the ultimatum of March 1939. Historian Sigita Černevičiūtė counted at least 146 executions in interwar Lithuania, though records are incomplete