The Left believes that acceptance of the government's proximity to the US will ring the death knell for its proletarian doctrine, built on decades of anti-American propaganda, the government is evidently of the view that it cannot allow the antiquated Cold War prejudices to determine its policies in the 21st century. The Left committed a more serious mistake in 1962 when a section within the undivided Communist Party of India (CPI) refused to blame China for invading India. Many in the CPI-M, which broke away from the CPI in 1964, 'believed that the Chinese Communists had done nothing wrong in attacking India'. They thought that in the long run 'the Chinese action would help advance the revolution by weakening the power of the ruling alliance'.