I'll call your bluff, as Wikipedia admits below that Jews, and Belarussians were armed by Soviets to cause mischief for Poles on September 18th of 1939.
Skidel revolt - Wikipedia
The revolt of 18 September 1939 was organized and helped by a
fifth column from the
Communist Party of West Belarus delegalized in 1938. According to Russian documents, it consisted of around 200 men, although their number has been contested by Polish historians as exaggerated.
[3] A group of Soviet-armed Jews and Belarusians, all citizens of Poland, carrying assault rifles and a Soviet heavy machine gun (but also axes and home-made weapons),
[4] massacred an unspecified number of ethnic Poles including civil servants, landowners, priests, rural settlers, Polish policemen and reserve officers at Skidel, Brzostowica Mała, Lerypol, Budowla, Ostryna, Jeziory and other locations.
[3] Several Polish families were rescued by their Belarusian neighbors in the village of Sawalówka.
[3]
On 19 September 1939 the 102nd Uhlan Regiment of the Polish Army was sent to the area from
Grodno, assisted by the local police and a group of volunteers from the prewar
Strzelec organization. After some heavy fighting around Ostryna, Dubno and Jeziory, the soldiers put down the revolt and took control of Skidel and neighboring settlements. The traitors against the nation captured with weapons and guilty of committing treason were
summarily executed on 19 September (some 18 to 31 men according to Soviet sources), but the fighting continued. One day after the Red Army tanks took over Skidel on 20 September 1939, the rebels massacred all Polish males in the village of Kurpiki. Some of the local saboteurs were executed by the Polish self-defence. Soviet historians blamed them later for most of the extrajudicial killings.
[3]