After
World War I started, the Romanian Social Democratic Party adopted a
pacifist stance and supported the
neutrality of Romania. Mihail Gh. Bujor participated in the 1914 extraordinary Congress of the PSDR and the July 1915 Bucharest Inter-Balkan Socialist Conference, which adopted strong anti-war declarations. In 1916 Romania's government decided to join the war on the side of the
Entente, and PSDR was outlawed for its positions. The
Romanian campaign however proved disastrous, and the southern half of the country was overrun by the forces of the
Central Powers. Bujor left for Moldavia, the unoccupied part of the country, along with the government and a large part of the population. The
February Revolution of 1917 led to a revival of the socialist movement in Iași, as the local socialist club was reopened and a new newspaper,
Social-Democraţia ("Social-democracy"), was published. There, Bujor came into contact with revolutionary elements of the
Russian army stationed in Romania, and began militating for a similar evolution in Romania. Thus, in a eulogy at the funerals of former party leader
Ottoi Călin on April 16, Bujor denounced war as an instrument foreign to the interests of proletariat and urged the public to extend the influence of the Russian revolution. Considering socialists a threat to its authority and the stability of the front, the Romanian government decided to clamp down on the movement by dissolving the clubs, banning their publications, and arresting their leaders, including Bujor. The imprisonment did not last long, as, after the
May Day parade organised by the Russian military units in Iași, a group of Romanian socialists and workers accompanied by Russian soldiers set him free. In the same evening Bujor left for
Odesa in southern
Ukraine, along with Rakovsky, who had been freed in a similar manner on the same day. The local soviet of the Russian soldiers provided them with a train and an armed escort. In Odesa, Bujor and Rakovsky organised the
Romanian Committee for Social-Democratic Action, the latter leaving for
Petrograd soon after. The committee, which also included socialists
Ion Dic Dicescu,
Alexandru Nicolau, and Alter Zalic, sought to mobilize the sizeable Romanian workers population in the region, many of them evacuated from Romania along with strategic factories in the wake of the German invasion. Bujor also maintained contact with the socialists in Iași, supplying them with printed manifestos, and in Odessa he organised a revolutionary armed battalion from local Romanian soldiers. The committee requisitioned several Romanian vessels moored in Russian
Black Sea ports and rechristened them with revolutionary names. Starting with September 5, 1917, the Committee headed by Bujor also began to print the newspaper
Lupta ("The Struggle"), with the help of local revolutionaries. A more radical discourse was adopted, with calls for the extension of the Russian Revolution in Romania and the overthrow of the monarchy. However, the committee supported a bourgeois-democratic revolution rather than an outright socialist one, as Romania was seen as too backward for socialism to succeed. Generally, it was supportive of the
Russian Provisional Government, not making clear differences between
Mensheviks and
Bolsheviks. After the
October Revolution, Bujor, although reserved at first, sided with the Bolsheviks, and in December he left for Petrograd to meet the new leadership. The committee also changed its position towards communist revolution in Romania, considering it as both feasible and necessary. In February 1918 Bujor met Lenin, who appointed him a member in the
High College for the Struggle against Counter-revolution in the South, a provisional military command. Together with Dicescu, he edited a collection of secret documents from the Russian diplomatic archives, exposing the negotiations between Romania and Entente predating the former's entry into war, as well as later
French-
Russian talks dismissing Romanian territorial claims. On January 10, 1918, the Odesa committee was transformed into the
Romanian National Committee against the Counter-revolution in Romania, and Bujor was soon joined by Rakovsky. The committee decided to fight against the Romanian government, whom they considered to be controlled by the bourgeoisie and the landowners, and to help start a revolution inside the country. A Soviet offensive in Romanian-controlled Bessarabia was also prepared for late February, but developments on the international scene prevented a major attack. After the signing of the
Treaty of Brest-Litovsk and the occupation of Ukraine by the
German Army, Bujor decided to remain in Odesa. Arrested by the Germans, he was handed over to the
Whites, however he was soon set free after a successful Soviet counter-offensive liberated the city. In March 1919 he was appointed to the southern bureau of the newly founded
Third International, and between May and June he served as People's Commissar for Foreign Affairs in the provisional government of the short-lived
Bessarabian Soviet Socialist Republic. ==Imprisonment and later life==