Later, in September 1951, India declined to attend a conference in San Francisco for the conclusion of a peace treaty with Japan because China, which India viewed as an important factor in this treaty, was not invited because of its status as an international pariah. In the coming years India strove to become China's representative in world matters, as China had been isolated from many issues. India vigorously pressed, since the start of the 1950s, for the PRC to be included within the UN.