On December 7, 2018, a memorial plaque of black granite was officially opened at the embassy in Warsaw as part of the celebration of the 100th anniversary of the Bulgarian-Polish diplomatic relations, in memory of the Bulgarian embassy staff who worked there in the 1939- 1941 - Krum Tsokov, Trifon Puchlev and Dimitar Ikonomov. As is well known, these three employees, at risk of their lives and personal security, were involved in the so-called Group B, operating simultaneously in Warsaw and Sofia, with whom many Polish citizens managed to emigrate from occupied Poland to Bulgaria and other countries. According to the historical data, there were soldiers and persons of Jewish origin among the Polish citizens who were saved in this way.

The memorial plaque attached to the Embassy's fence from the main street of Uzadzkovskie str. was opened by Mr. Yuri Shtrak, Deputy Minister of Foreign Affairs, Ambassador Krzysztof Krayevski, Director of the Diplomatic Protocol Directorate in the Polish MFA and Ambassador to Bulgaria in the period 2014 -2018. A speech at the opening was given by the Bulgarian ambassador to Warsaw, Emil Yalnazov. Such a plaque has been present on the fence of the Polish embassy in Sofia for quite some time now.

The event was attended by compassionate Poles and Bulgarians, members and friends of Trifon Puhlev's family, the authors of the documentary "Through Sofia to Freedom" Barbara Rogalska and Bozhidar Slavov, as well as many of the participants in the academic conference at Warsaw University, which was devoted to 100 - the anniversary of the diplomatic relations between the two countries.

Later on, at the Embassy at a cocktail in a warm and intimate atmosphere, exciting memories were shared about the three worthy Bulgarians of their descendants and friends, among them Mr. Antoni Puchlev, Mrs. Martha Kosetskaya, Mrs. Alina Petrova, Mrs. Barbara Rogalska, Mr. Bojidar Slavov, Mrs. Galya Konah, Mr. Ivancho Galabov.

The purpose of the Memorial Plaque project, implemented by the Embassy in the last year with funds under the Communication Strategy of the Ministry of Foreign Affairs, is to preserve for the present and future generations the historical memory of the uniquely intertwined personal destinies of Bulgarians and Poles, against the backdrop of the dramatic events during the Second world war and in the post-war period. The attending guests praised the initiative of the Embassy and the Ministry of Foreign Affairs, expressing their willingness to cooperate in realizing other similar projects aimed at preserving and disseminating the historical memory connecting Bulgaria and Poland.