Polish-Soviet relations were broken off on April 25, 1943 due to the Katyn massacre, and it became obvious that the advancing Red Army might not come to Poland as a liberator but rather, as General Rowecki put it, "Our Allies' Ally". On November 26, 1943 the Polish government in exile issued an instruction to the effect that if diplomatic relations with the Soviet Union were not resumed before their entry to Poland, the Home Army forces were to remain underground until further decisions were made. However, the Home Army commander took a different approach, and on November 30, 1943 the final version of the plan was created. It became known as Operation Tempest.