The Soviets brought a map in the scale of 1:1,500,000 to the meeting, along with a detailed border agreement, both documents bore the signature of Osóbka-Morawski on July 25, 1944.

People often had to make immediate decisions about staying in their native villages, which were suddenly to be in another country or deciding to repatriate, when only very few Poles knew where the recently formed eastern border of the Białystok Voivodeship is.

[6] During the negotiations, Poland obtained favourable changes in shifting the border of the Białystok Voivodeship to the east to only 8 kilometers or less.

The original intention of the border negotiations after August 16, 1945 was the exchange of territories between Poland and the USSR on the basis of complete equilibrium.

Poland also undertook to transfer 234 square kilometres of land in East Prussia to the USSR as compensation for 'unequal' exchange on the eastern border.

Starting from the north, in the Sokółka County of the Nowy Dwor commune, the village of Rogacze partially returned to Poland.

Between the track and the road, a large village of Chworościany, with 50 farms and land with medium-quality soil, returned to the Polish side.

As a result of the border shifting by 2,000 m to the east, Usnarz Górny, the land of which, however, remained in the USSR, Grzybowszczyzna, and Jurowlany, passed back to Poland.

Near Krynki, the border crossed the Krynki-Brzostowica road and was moved 1 km to the east, which meant that the Polish side only gained in terms of terrain, as there were no towns there.

All in all, the county obtained a shift of the border from 200 to 3,000 meters to the east, most of the returned villages were ethnically Polish: Rogacze, Chworościany, Nowdziel, Szymaki, Nomiki, Minkowce, Łapicze, Gobiaty, Usnarz Górny, Jurowlany and Rudaki.

The county also acquired the devastated and abandoned areas of the former Jewish settlement of Palestyna, and the village of Grzybowszczyzna inhabited by Belarusians.

The voivode stated that the proposals he submitted met the needs of the people living there and also protected the interests of the Białystok Voivodeship and Poland.

Further, the border ran through areas which Poland lost due to the Soviet dictate, because they were located on the west side of the Curzon Line.

Polish negotiators during the delimitation procedure realized that they were helpless in the face of these imposed arrangements and were only trying to introduce minor verifications for Poland.

60% of its area was transferred to the USSR, including 17 completely built-up colonies with high agricultural culture, inhabited by Polish people.

[8] Polish local authorities requested the resettlement of the Belarusian population from the villages of Jurowalny, Grzybowszczyzna, Usnarz Gorny and Łapicze to the territory of the BSSR.

However, the local authorities determined the final shape of the border and belonging of individual villages or their fragments for more than a year and a half.

2 of the Agreement between the Republic of Poland and the Soviet Union on the Polish-Soviet state border and documents signed by the Mixed Commission of Poland and the USSR of April 30, 1947, the state border between Poland and the USSR in the Białystok Voivodeship ran as follows: straight lines with a small section of the river Leśna and Przekłaka (Perewołoki) in a general north-eastern direction from a point on the Bug River 1/2 kilometer above Niemirów to a point 4 kilometers east of Białowieża, over a distance of approximately 76 kilometers (border posts from numbers 1346 to 1495), leaving on the Polish side towns: Niemirów, Klukowicze, Wyczółki, Bobrówka, Stawiszcze and Wólka Terechowska, Opaka Wielka, Biała Straż, Wojnówka and Górny Gród.

The following towns remained on the Soviet side: Wólka Pużycka, Tołszcze, Łumno, Łumianka, Hola, Piszczatka, Chlewiszcze, Terechy, Opaka Mała, Wołkostawiec, Bobinka, Klatkowo, Grabowiec and the settlements of Tokary, Turowszczyzna and the Chlewiszcze colony were divided between Poland and the Soviet Union.

On the Polish side remained Jamasze, Łapicze, Krynki, Jurowalny, Grzybowszczyna, Usnarz Górny, Minkowce, Zubryca, Nowiki, Klimókwa, Szymaki, Tokze, Nowodziel, Kuźnica, Saczkowce, Wołyńce, Chworościany, Lipszczany, Rakowicze, Lichosielce, Bartniki, Bohatery Leśne, Sołojewszczyzna and Rudawka.

The USSR took over: Porzecze, Służki, Ostapkowszczyzna, Rzepowicze, Usnarz Dolny, Odelsk with the Issac Colony, Czarnowszczyzna Podlipki, Łosośna, Dubnica, Bielany, Rogacze, Nowo-siółki, Bohatery Polne, Komiasarowo, Hołynka, Markowce, Darguń, Wołkuszek, Kurzyniec and Eśniczówka Giedz.

For example, if Kiełbasy (Belarusian: Келбаскі) which became part of the BSSR would have been stayed in Poland, this would significantly accelerate the post-war reconstruction from the damage because the Polish State Railways did not resume traffic on the alternative route to Suwałki and Augustów, leading through the cities of Ełk and Olecko until November 24, 1946.

The location of the new border significantly delayed the reconstruction of these areas, considering the fact that they were heavily forested and that the main road from Augustów to Sejny remained severely damaged and mined until June 1946. telephone and telegraph connections were of great importance.

Again, the new frontier severed or significantly complicated the telephone and telegraph connections that had survived the six years of Soviet and German occupation.

Belarus was accused of hybrid warfare by orchestrating and supporting illegal crossing of the border in forest areas.

"The measure will apply for a period of three weeks from today until 15 September 2021 inclusive", with the ECHR judge citing the European Convention on Human Rights, while stating that neither country was ordered to allow the migrants through the border.

People have spent days or weeks in the open on the border, without shelter or access to basic humanitarian services, including food and water, resulting in deaths.

[23] On 15 February 2022, OHCHR reported that human rights defenders, including media workers and interpreters face threats and intimidation at the border with Belarus.

The organization called on Poland authorities to investigate all allegations of harassment and grant access to journalists and humanitarian workers to the border area ensuring that they can work freely and safely.

On 28 May 2024, A Polish soldier was injured after being stabbed along the Poland-Belarus border by a migrant trying to enter the country illegally during a patrol in Podlaskie Voivodeship.