The Agreement between the Republic of India and the People's Republic of China on Trade and Intercourse Between Tibet Region of China and India 1954 was signed in Peking on 29 April 1954, and contained the first formal codification of the Five Principles of Peaceful Coexistence. In retrospect, especially following the 1962 war, the agreement has been seen as a "diplomatic blunder" on the part of Prime Minister Jawaharlal Nehru.