The Soviet troops allocated for possible military actions against the Baltic states numbered 435,000 troops, around 8,000 guns and mortars, over 3,000 tanks, and over 500 armoured cars. On 3 June 1940 all Soviet military forces based in Baltic states were concentrated under the command of
Aleksandr Loktionov. On 9 June the directive 02622ss/ov was given to the Red Army's
Leningrad Military District by
Semyon Timoshenko to be ready by 12 June to a) capture the vessels of the
Estonian,
Latvian and
Lithuanian navies in their bases or at sea; b) capture the Estonian and Latvian commercial fleets and all other vessels; c) prepare for an invasion and landing in Tallinn and Paldiski; d) close the
Gulf of Riga and blockade the coasts of Estonia and Latvia in the
Gulf of Finland and
Baltic Sea; e) prevent an evacuation of the Estonian and Latvian governments, military forces and assets; f) provide naval support for an invasion towards
Rakvere; and g) prevent Estonian and Latvian airplanes from flying either to Finland or Sweden. ,
Estonia (1941) On 12 June 1940, according to the director of the Russian State Archive of the Naval Department Pavel Petrov (C.Phil.) referring to the records in the archive, the Soviet
Baltic Fleet was ordered to implement a total military blockade of Estonia. On 13 June at 10:40 a.m. Soviet forces started to move to their positions and were ready by 14 June at 10 p.m. Four submarines and a number of light navy units were positioned in the Baltic Sea, in the Gulfs of Riga and Finland, to isolate the Baltic states by the sea. A navy squadron including three destroyer divisions was positioned to the west of
Naissaar in order to support the invasion and the 1st Marine Brigade's four battalions were positioned on the transport ships
Sibir,
2nd Pjatiletka and
Elton for landings on the islands Naissaare and
Aegna. The transport ship
Dnester and destroyers
Storozevoi and
Silnoi were positioned with troops for the invasion of the capital Tallinn; the 50th battalion was positioned on ships for an invasion near
Kunda. Participating in the naval blockade were 120 Soviet vessels, including one cruiser, seven destroyers, and seventeen submarines, along with 219 airplanes including the 8th air-brigade with 84
DB-3 and
Tupolev SB bombers and the 10th brigade with 62 airplanes. On 14 June 1940 the Soviets
issued an ultimatum to Lithuania. The Soviet military blockade of Estonia went into effect while the world's attention was focused on the
fall of Paris to Nazi Germany. Two Soviet bombers downed the Finnish passenger airplane
Kaleva flying from Tallinn to
Helsinki carrying three diplomatic pouches from the U.S. legations in Tallinn,
Riga and Helsinki. The US Foreign Service employee
Henry W. Antheil Jr. was killed in the crash. On 16 June 1940 the Soviets
issued an ultimatum to Estonia and to Latvia. On 18 June 1940 the German Ambassador to the Soviet Union
Graf von der Schulenburg in his telegram said that earlier
V. Molotov had "warmly" congratulated him on Germany's recent success in France and added that: «[…] it had become necessary to put an end to all the intrigues by which England and France had tried to sow discord and mistrust between Germany and the Soviet Union in the Baltic States. […]Lithuanian border was evidently inadequately guarded. The Soviet Government would, therefore, if requested, assist the Lithuanian Government in guarding its borders.»
Red Army invades Molotov had accused the Baltic states of conspiracy against the Soviet Union and delivered an ultimatum to all Baltic countries for the establishment of Soviet-approved governments. Threatening invasion and accusing the three states of violating the original pacts as well as forming a conspiracy against the Soviet Union, Moscow presented ultimatums, demanding new concessions, which included the replacement of their governments and allowing an unlimited number of troops to enter the three countries. The Baltic governments had decided that, given their international isolation and the overwhelming Soviet forces on their borders and already on their territories, it was futile to actively resist and better to avoid bloodshed in an unwinnable war. The occupation of the Baltic states coincided with a communist
coup d'état in each country, supported by the Soviet troops. On 15 June the USSR invaded Lithuania. The Soviet troops
attacked the Latvian border guards at Masļenki before invading Latvia and Estonia on 16 June. The Soviet military forces far outnumbered the armies of each country. Most of the
Estonian Defence Forces and the
Estonian Defence League surrendered according to the orders of the Estonian Government and were disarmed by the Red Army. Only the Estonian Independent Signal Battalion stationed in Tallinn at Raua Street showed resistance to the Red Army and "People's Self-Defence" Communist militia, fighting the invading troops 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 two dead Estonian servicemen, Aleksei Männikus and Johannes Mandre, and several wounded on the Estonian side and about ten killed and more wounded on the Soviet side. The Soviet militia that participated in the battle was led by
Nikolai Stepulov.
Western reaction Estonia was the only one of the three Baltic states that established a
government in exile. It had
legations in London and was the government recognized by the Western world during the
Cold War. With the
reestablishment of independence by the Soviet Republics leaving the USSR in 1990–1991, the government in exile was integrated into the new governing establishment.
Latvia and
Lithuania managed to preserve exile diplomatic services that had received emergency powers to represent the countries abroad, that worked as
de facto governments-in-exile. ==Sovietization of the Baltic states==