Abstract
Since the birth of the Popular Republic of China, in 1949, the PRC and the USSR experienced a love and hate relationship, which can easily be understood given some capital elements: China and Russia are two countries as large as continents, both claim(ed) to adhere to communism, and they share the world longest continental border (4250 km, along Central Asia, Mongolia and the Far East). It is thus, obvious that all the elements are combined for alliance or rivalry between the two countries, and they experienced both since the second half of the 20th century. How has Sino-Russian relations evolved since 1949? How does each power perceive the other, and how does this conception influence both of their policies?
