In 1964, Jose Maria Sison co-founded the "Kabataang Makabayan" (Patriotic Youth) with Nilo Tayag. This organization rallied the Filipino youth against the Vietnam War, against the Marcos presidency, and corrupt politicians. On December 26, 1968, he formed and chaired the Central Committee of the Communist Party of the Philippines (CPP), an organisation within the Communist Party founded on Marxist–Leninist-Mao Zedong Thought, stemming from his own experiences as a youth leader, labour, and land reform activist. This is known as the First Great Rectification Movement where Sison and other radical youths criticised the existing Party's leadership and failure. The reformed CPP included Maoism within the political line as well as the struggle for a National Democratic Revolution in two-stages, consisting of a protracted "People's War" as its first part to be followed by a Socialist Revolution.