History of Poland (1945–1989) of Brezhnev, there could be no peaceful resolution to the situation that developed. The Soviets now expressed a preference for the conflict to be resolved by the Polish authorities, but Poland, according to Karol Modzelewski, was lucky to avoid a carnage of foreign intervention. Others, including the historian Antoni Dudek, feel that there was no sufficient justification for the imposition of martial law that followed. On 13 December 1981, claiming that the country was on the verge of economic and civil breakdown and alleging a danger of Soviet intervention, General Wojciech Jaruzelski began a crack-down on Solidarity. Martial law was
Wojciech Jaruzelski appearances. However, Wałęsa persuaded the Communists' two allied parties, the United People's Party (ZSL) and the Alliance of Democrats (SD), to break their alliance with the PZPR. Accepting that he would have to appoint a Solidarity member as prime minister, Jaruzelski then asked Wałęsa to select three candidates, one of whom he would ask to form a government. Ultimately, Tadeusz Mazowiecki, who had helped organize the roundtable talks, was selected as first non-Communist prime minister of an Eastern Bloc country in four decades. Jaruzelski resigned as president in 1990. He was succeeded by Wałęsa, who had won the presidential election