The
armed Korean groups gathered in Free City was primarily the nationalist Korean Independence Corps and the communist armed groups of the Maritime Provinces and Siberia. Since the
Comintern supported the Korean Independence Corps, the initiative was taken by communist-affiliated Korean armed units. However, the socialist armed units that gathered in Free City in late March 1921 were the
Shanghai Faction of the Korean Communist Party. Their armed units included the Shanghai faction and Korean Independence Army units from
Jiandao. They were supported by the
Far East Republic of the
Russian Communist Party. The Comintern's Oriental Secretariat supported the
Irkutsk faction. The two sides clashed over command of Korean armed units in Russia. Meanwhile, many Korean Independence units that moved to Free City were affiliated with the Sakhalin Volunteer Army. Park Il-ya's Nihang Unit represented the Shanghai faction of the Korean Communist Party, while Oh Ha-muk's Freedom Battalion represented the Irkutsk faction of the Korean Communist Party. Before Korea's Provisional Government was integrated into the Provisional Government of the Republic of Korea, there were three provisional governments: the Korean National Assembly in the Maritime Provinces, the Hanseong Government in Seoul, and the Provisional Government in Shanghai. The Shanghai faction supported the Shanghai Provisional Government, and the Irkutsk faction supported the Maritime Province Korean National Assembly. Since the Free City was part of the Far Eastern Republic and the Free Battalion was a unit of the Far Eastern Republic, the Korean armed units had to be incorporated into the Freedom Battalion of the Irkutsk faction. Pak Il-ya refused to be incorporated into the Freedom Battalion and reported this to the Korean Ministry of the Far East Republic. At that time, the Shanghai faction dominated the Korean section of the Far East Republic. They unilaterally dispatched Park Chang-eun and Grigoryev without consulting with the Korean National Assembly or the Freedom Battalion. They attempted to take the initiative in consultation with the Far Eastern Republic. Park Il-ya attempted to reorganize the Nihang Army into the Sakhalin Volunteer Army and place all Korean armed units under it. However, Park Chang-eun and his party, who arrived in Free City in mid-February 1921, failed to exercise their commanding authority and resigned as commander-in-chief. The Korean People's Department appointed Grigoryev regiment commander and Park Il-ya, the military administration committee chairman. The two immediately began managing the military. Park Il-ya moved the Nihang Army and Davan Army, which had been incorporated into the Freedom Battalion, to Masanov. In addition, the Korean Independence Corps, mainly composed of independence fighters from
Gando, was also forcibly expelled from Free City. The Freedom Battalion refused to comply until the end, so its officers were arrested and disarmed by the Nihang Army and the Davan Army. The Freedom Battalion was downgraded and forcibly incorporated into the local garrison of the Far Eastern Republic. In this way, the Shanghai faction and Park Il-ya commanded the Korean Independence Army units gathered in Free City.
Disarmament Oh Ha-muk, who led the Freedom Battalion, could not remain still. He went to the Oriental Secretariat of the Comintern (
Third International) in Irkutsk and negotiated for them to have command of the Korean armed forces. The Comintern had sufficient power because it was controlling the Far Eastern republics. The Oriental Affairs Department of the Comintern sided with the Irkutsk faction and Ohamuk. The Eastern Secretariat transferred the jurisdiction of the Korean Independence Corps in Russia from the Far East Republic to the Oriental Secretariat of the Comintern. The situation developed in favor of the Korean Revolutionary Army Council. On June 2, 1921, the Soviet Red Army demanded the disarmament of the Independence Army because they refused the request to fight for the
Soviet Communist Party. The independence army protested against the demand to fight for the Soviet Communist Party. Still, they had already surrounded the independence army in two or three sections, forcing them to accept it unconditionally. At this time, the Irkutsk faction was plotting work behind the Soviet army, and Kim Jwa-jin, sensing the intentions of the Soviet Communist Party, crossed the Heilongjiang River with his subordinates in extreme secrecy and returned to Manchuria, China. Park Il-ya and others organized the Korean Military Committee (All-Korean Military Committee) to counter this. They attempted to receive support from the government of the Far East Republic but failed. The Oriental Secretariat of the Comintern organized the Korean Revolutionary Military Government Council and its army, the Korean Revolutionary Army, with the Freedom Battalion as its leading force. It appointed
Nestor Kalandarishvili as commander-in-chief, Oh Hamuk as deputy commander, and Kim Ha-seok and Chae Seong-ryong as members of the military administration. He arrived in Free City on June 6 and convened the entire unit in Free City on the 7th—Korean Revolutionary Military Council. However, the Korean Revolutionary Military Government Council failed to mediate the conflict between the two forces. On the 8th, Kalandarishvili ordered Park Il-ya to lead an army and enter Free City. Ilya Park rejected this. However, the troops of Hong Beom-do and Cho An-mu of the Korean Independence Army followed orders and joined Free City. However, Park Il-ya continued to rebel against the Korean Revolutionary Military Government Council.
Siege of Surazhevka On June 19, 1921, on the brink of an armed conflict between the Korean Volunteer Army and the Korean Revolutionary Military Government Council, a unified officers' meeting was held, and a resolution was made to unify the two. However, as seven Korean Volunteer Army officers demanded that three Korean National Assembly members, including Kim Ha-seok, Oh Hamuk, and Choi Go-ryeo, be excluded from the military government council executives, the conflict between the two could no longer be resolved. June 28 at 1 p.m., the Koryeo Revolutionary Military Government Council negotiated with the Free City Garrison of the Far East Republic to disarm them. They mobilized about 10,000 men of the 2nd Corps of the Far East Republic armed with armored vehicles, cannons, and machine guns. They dispatched four companies of the 29th Regiment of the Free City Guards and the Korean Revolutionary Army's Freedom Battalion to Surazhevka, where the garrison of the Sakhalin Volunteer Corps is stationed. The commander of the 29th Regiment entered the headquarters of the Sakhalin Volunteer Corps and urged them to obey. The Sakhalin Volunteer Corps did not comply with the order to disarm, and the 29th Regiment of the Free City Guards issued an attack order to disarm them. The Sakhalin Volunteer Corps fell under the siege and concentrated gunfire of the Russian Red Army. The two sides continued their standoff until 4 p.m. when Kalandarishvili and Oh Ha-muk began attacking the Sakhalin Volunteer Army, driving them back. Since the Soviet army had already occupied an advantageous position, victory or defeat was certain as there was a river behind the Independence Army, so they could not escape. The ensuing siege turned into street battles, where hundreds of people were killed, and the wooden city burned down. ==Aftermath==