Józef Piłsudski, Polish field marshal and politician, 15th Prime Minister of Poland (born 1867)

Józef Klemens Piłsudski^[a] was a Polish statesman who served as the Chief of State (1918–1922) and first Marshal of Poland. In the aftermath of World War I, he became an increasingly dominant figure in Polish politics and exerted significant influence on shaping the country's foreign policy. Piłsudski is viewed as a father of the Second Polish Republic, which was re-established in 1918, 123 years after the final partition of Poland in 1795, and was considered de facto leader (1926–1935) of the Second Republic as the Minister of Military Affairs.

The president of the Council of Ministers, colloquially and commonly referred to as the prime minister, is the head of the cabinet and the head of government of Poland. The responsibilities and traditions of the office stem from the creation of the contemporary Polish state, and the office is defined in the Constitution of Poland. According to the Constitution, the president nominates and appoints the prime minister, who will then propose the composition of the Cabinet. Fourteen days following their appointment, the prime minister must submit a programme outlining the government's agenda to the Sejm, requiring a vote of confidence. Conflicts stemming from both interest and powers have arisen between the offices of President and Prime Minister in the past.