Most of the Estonian Defence Forces and the Estonian Defence League surrendered according to the orders of the Estonian Government believing that resistance was useless and were disarmed by the Red Army. Only the Estonian Independent Signal Battalion stationed in Tallinn at Raua Street showed resistance to Red Army, along with a Communist militia called "People's Self-Defence", () on 21 June 1940. As the Red Army brought in additional reinforcements supported by six armoured fighting vehicles, the battle lasted several hours until sundown. Finally the military resistance was ended with negotiations and the Independent Signal Battalion surrendered and was disarmed. There were 2 dead Estonian servicemen, Aleksei Männikus and Johannes Mandre, and several wounded on the Estonian side and about 10 killed and more wounded on the Soviet side. On the same day, June 21, 1940, the Flag of Estonia was replaced with a Red flag on Pikk Hermann tower, the symbol of the government in force in Estonia.