On Sept.17, 1939, #RedArmy crossed the border with Polish Republic.

By TWP from twitter


The link in the Tweet gives:

The Russian MFA is ignoring or manipulating facts related to the Soviet agression against Poland. My brief answer on their post.
At three in the morning on the 17th of September, Soviet authorities attempted to hand a note to Wacław Grzybowski, the Polish Ambassador. Grzybowski refused the note, which included a passage stating that “Warsaw, as the capital of Poland, no longer exists. The Polish Government has succumbed to decomposition and now shows no signs of life. This means that the Polish state and its government have, in fact, ceased to exist. As a result of this, treaties between the Soviet Union and Poland have lost their validity.”
Of course there is not the slightest doubt that the statement that the Polish state ceased to exist was, from the beginning, null and void. Contemporary international law already excluded the liquidation of a country in any manner other than with its express, voluntary consent. Moreover, even the facts do not agree.
When the Soviet army crossed Poland’s border – and entered the WWII as an ally of the III Reich – about half of the country’s territory, including its capital, remained unoccupied by the Germans. The Polish Army was still actively fighting and the president, government, and commander in chief remained in the country. Germany was at war not only with Poland, but also with its allies, including Britain and France. In this situation, the Soviet Union’s assertion that Poland had ceased to exist prior to 17 September 1939 and the resulting invasion—based on a claim that unrest in the terra nullius demanded a “humanitarian intervention” in defence of local Ukrainian and Belarusians—was an international crime. The actions of the Soviets fit perfectly into the definition of aggression set forth in the London Convention of 1933.
Thus Poland and the Soviet Union were, as Polish authorities have repeatedly stated, in a state of war—albeit one which had not been formally declared as ongoing fighting would have made such an act a mere theatrical gesture. For that matter, Soviet Legal doctrine felt that a formal declaration of war was a relic of ancient times and a practice that had lost its real meaning.
For these same reasons, the agreement reached between the Soviet Union and the Third Reich on 28 September 1939 on the distribution of zones of interest in the “previous” (bisherig in the original German text of the document) or “former” (byvshee in the original Russian text) Polish state was illegal. The unilateral annexation of the eastern part of the Polish state to the Soviet Union—and the transfer of part of its territory to a third country, Lithuania—was likewise illegal from the beginning. In this annexation, the Soviet Union, which did not have the consent of the Polish state, the territory’s original sovereign, committed another international offense. It should also be noted that Lithuania ceased to recognize Poland as a state after the September campaign.
In any event, the Soviet Union changed its legal position on the Polish state after the Germans attacked the USSR on 22 June 1941. The Soviets not only recognized Poland’s existence, but also resumed diplomatic relations with the Polish government. Moreover, in an agreement concluded on 30 July 1941, the Soviets conceded that German-Soviet treaties of 1939 concerning territorial changes in Poland territorial changes were no longer valid.
However, the Soviet government, while recognizing both the legal existence of the Polish state between 1939 and 1941 and the Polish government-in-exile in London, began to question the Polish-Soviet border as established in 1921. The Soviets asserted that this border arrangement had ignored the will of the people in the territory they referred to as “Western Ukraine” and “Western Belarus.” They further claimed that the population in these areas had made their desire to be part of the Soviet state clear in the plebiscites of 22 October 1939 and as a result of them the territories became part of the Soviet Union on 1 and 2 November 1939. Again, in light of international law, these polls cannot be claimed to have any legal force, primarily due to lack of consent on the cession of the Polish government as well as due to the rule of ex injuria jus non oritur. The Soviets also broke with several other international legal norms about the occupation, as codified in the Hague Conventions of 1907. Moreover, the Stalinist plebiscites were a veritable parody of real elections and had nothing to do with the rights of nations to self-determination. Besides all of this, the right to self-determination in and of itself did not entitle to make unilateral changes to the border, nor did it create a legal title to the land, at least according to the “bourgeois” doctrine of international law.
The vast majority of the international community—excluding Nazi German and the USSR—did not recognize the “conquest” of the Polish state and never officially sanctioned the unilateral Soviet annexation of eastern territories. However, Poland’s Western allies de facto no longer recognized the country’s territorial integrity, largely because of the practical assumption that cooperation with the Soviets—and a compromise on boundaries—was necessary in order to defeat the Germans. For this reason, they put pressure on the Polish government to discuss the border question with the Soviet Union.
However, from the point of view of international law, Poland continued to exist within its borders from 1939. This changed only on 5 February 1946, when the instruments of ratification for an August 1945 agreement on the Polish-Soviet border were exchanged. That agreement solidified a border which, with minor changes in 1951, continues to exist today. In accordance with its terms, Poland ceded practically 90% of the territory occupied by the Red Army in 1939 to the USSR. 10% of this territory remained in Poland, including such cities and towns as Łomża, Augustów, Białystok, and Przemyśl.


Some replies in the thread:


LOG_SO  🔫 @cezarysta  18m18 minutes ago

Replying to @mfa_russia @rvio_ru and 9 others

@mfa_russia dictionary has been just released! Check the meaning:

☑️ crossing border = invasion

☑️ to help = to kill, imprison or deport

More info