Sanation was a Polish political movement that was created in the interwar period, prior to Józef Piłsudski's May 1926 Coup d'État, and came to power in the wake of that coup. In 1928 its political activists would go on to form the Nonpartisan Bloc for Cooperation with the Government (BBWR).

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.