Polish–Soviet War
Abortive peace process

In late autumn 1919, to many Polish politicians it appeared that Poland had achieved strategically desirable borders in the east and therefore fighting the Bolsheviks should be terminated and peace negotiations should commence. The pursuit of peace also dominated popular sentiments and anti-war demonstrations had taken place.

The leadership of Soviet Russia confronted at that time a number of pressing internal and external problems. In order to effectively address the difficulties, they wanted to stop the warfare and offer peace to their neighbors, hoping to be able to come out of the international isolation they had been subjected to. Courted by the Soviets, the potential allies of Poland (Lithuania, Latvia, Romania, or the South Caucasus states) were unwilling to join a Polish-led anti-Soviet alliance. Faced with the diminishing revolutionary fervor in Europe, the Soviets were inclined to delay their hallmark project, a Soviet republic of Europe, to some indefinite future.

The peace offers sent to Warsaw by Russia's Foreign Secretary Georgy Chicherin and other Russian governing institutions between late December 1919 and early February 1920 had not been responded to. The Soviets proposed a favorable for Poland troop demarcation line consistent with the current military frontiers, leaving permanent border determinations for later.

While the Soviet overtures generated considerable interests on the parts of the socialist, agrarian and nationalist political camps, the attempts of the Polish Sejm to prevent further warfare turned futile. Piłsudski, who ruled over the military and to a considerable degree over the weak civilian government, prevented any movement toward peace. By late February, he directed the Polish representatives to engage in pretended negotiations with the Soviets. Piłsudski and his collaborators stressed what they saw as the increasing with time Polish military advantage over the Red Army and their belief that the state of war had created highly favorable conditions for Poland's economic development.

On 4 March 1920, General Władysław Sikorski initiated a new offensive in Polesia; the Polish forces had driven a wedge between Soviet forces to the north (Belarus) and south (Ukraine). The Soviet counter-offensive in Polesia and Volhynia was pushed back.

Polish–Russian peace negotiations in March 1920 produced no results. Piłsudski was not interested in a negotiated solution to the conflict. Preparations for a large-scale resumption of hostilities were being finalized and the newly declared (over the protest of a majority of parliamentary deputies) marshal and his circle expected the planned new offensive to lead to the fulfillment of Piłsudski's federalist ideas.

On 7 April, Chicherin accused Poland of rejecting the Soviet peace offer and notified the Allies of the negative developments, urging them to prevent the forthcoming Polish aggression. The Polish diplomacy claimed the necessity to counteract the immediate threat of a Soviet assault in Belarus, but the Western opinion, to whom the Soviet arguments seemed reasonable, rejected the Polish narrative. The Soviet forces on the Belarusian front were weak at the time and the Bolsheviks had no plans for an offensive action.
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